ESA Observing the Earth

Bushfires rage in Australia

The Copernicus Sentinel-3 mission captured the multiple bushfires burning across Australia’s east coast. Around 150 fires are still burning in New South Wales and Queensland, with hot and dry conditions accompanied with strong winds, said to be spreading the fires.

In this image captured on 12 November 2019 at 23:15 UTC (13 November 09:15 local time), the fires burning near the coast are visible. Plumes of smoke can be seen drifting east over the Tasman Sea. Hazardous air quality owing to the smoke haze has reached the cities of Sydney and Brisbane and is affecting residents, the Australian Environmental Department has warned.

Hundreds of homes have been damaged or destroyed, and many residents evacuated. Flame retardant was dropped in some of Sydney’s suburbs as bushfires approached the city centre. Firefighters continue to keep the blazes under control.

The Copernicus Emergency Mapping Service was activated to help respond to the fires. The service uses satellite observations to help civil protection authorities and, in cases of disaster, the international humanitarian community, respond to emergencies.

Quantifying and monitoring fires is fundamental for the ongoing study of climate, as they have a significant impact on global atmospheric emissions. Data from the Copernicus Sentinel-3 World Fire Atlas shows that there were almost five times as many wildfires in August 2019 compared to August 2018.

Bushfires rage in Australia

The Copernicus Sentinel-3 mission captured the multiple bushfires burning across Australia’s east coast. Around 150 fires are still burning in New South Wales and Queensland, with hot and dry conditions accompanied with strong winds, said to be spreading the fires.

In this image, captured on 12 November 2019 at 23:15 UTC (13 November 09:15 local time), the fires burning near the coast are visible. Plumes of smoke can be seen drifting east over the Tasman Sea. Hazardous air quality owing to the smoke haze has reached the cities of Sydney and Brisbane and is affecting residents, the Australian Environmental Department has warned.

Hundreds of homes have been damaged or destroyed, and many residents evacuated. Flame retardant was dropped in some of Sydney’s suburbs as bushfires approached the city centre. Firefighters continue to keep the blazes under control.

The Copernicus Emergency Mapping Service was activated to help respond to the fires. The service uses satellite observations to help civil protection authorities and, in cases of disaster, the international humanitarian community, respond to emergencies.

Quantifying and monitoring fires is fundamental for the ongoing study of climate, as they have a significant impact on global atmospheric emissions. Data from the Copernicus Sentinel-3 World Fire Atlas shows that there were almost five times as many wildfires in August 2019 compared to August 2018.

Improving new Aeolus wind data for forecasts

Tests carried out show that new wind profile observations from ESA’s Aeolus satellite significantly improves weather forecasts – particularly in the southern hemisphere and the tropics.

Improving new Aeolus wind data for forecasts

Tests carried out show that new wind profile observations from ESA’s Aeolus satellite significantly improve weather forecasts – particularly in the southern hemisphere and the tropics.

Earth from Space: Holbox Island

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-2 mission takes us over Holbox Island, off the Quintana Roo coast of Mexico.

See also Holbox Island, Mexico to download the image.

Holbox Island, Mexico

The Copernicus Sentinel-2 mission takes us over Holbox Island, off the Quintana Roo coast of Mexico. The island is separated from mainland Mexico by a shallow lagoon. This false-colour image has been processed in a way that highlights vegetation in bright red.

Holbox Island is around 40 km long and only approximately 1.5 km wide. The island is located within the Yum Balam Flora and Fauna Protection Area, established in 1994.

Encompassing more than 150 000 hectares, Yum Balam is home to several endangered species including jaguars, crocodiles and monkeys. The waters of Yum Balam are rich fishing areas and also home to whale sharks, over 400 species of bird, and over 70 different species of reptiles and amphibians.

This summer, a large quantity of the brown seaweed known as Sargassum washed up on the shores of Mexico. The brown algae is an important habitat for many species, yet when it collects along coastlines it rots and produces a pungent smell – causing havoc for  both the environment and  tourist industry.

In this image, captured on 6 July 2019, the Sargassum floating in the sea can be seen in bright red.

From 24 to 26 October, the first ever Sargassum International Conference took place in Guadeloupe where organisations and companies came together to discuss seaweed monitoring to find solutions to the massive increase being washed up in coastal communities.

Earth observation data are important in monitoring Sargassum, as the data can help local services and organisations monitor blooms at sea, and forecast when they are likely to arrive on shore, allowing local communities to act and plan accordingly.

As part of ESA’s Earth Observation Science for Society initiative, ESA joined forces with CLS-NovaBlue Environment, to monitor floating Sargassum in the Caribbean area using data from the Copernicus Sentinel-2 and Sentinel-3 missions.  

This image is also featured on the Earth from Space video programme.

Ozone hole set to close

The size of the ozone hole fluctuates – usually forming each year in August, with its peak in October, before finally closing in late November or December. Not only will the hole close earlier than usual in 2019, but it is also the smallest it has been in 30 years owing to unusual atmospheric conditions.

Earth images in vogue

Images of Earth from space meet fashion this week as Vogue magazine features the ‘Fragility and Beauty’ exhibition in Milan, Italy. Through several satellite images, the Italian online edition of Vogue highlights how the exhibition creates a link between scientific research, space technology and art, focusing on the theme of climate change and sustainable development.

Organised by ESA and the Italian Space Agency and inaugurated in May this year, the ‘Fragility and Beauty’ exhibition can be seen at the Italian National Museum of Science and Technology in Milan.

This image of northern Serbia is just one of the many beautiful images from space included in the exhibition.

Originally featured on ESA’s Earth from Space video programme, this particular image was taken by the Copernicus Sentinel-2 mission on 28 August 2016.  It is a false-colour image, and apart from being beautiful, the different colours indicate varying vegetative states. For example, yellowish patches indicate soil or freshly ploughed land, while shades of blue (primarily in the lower left) indicate either the same crop or different crops at a similar stage of growth.

The two Copernicus Sentinel-2 satellites each carry an instrument that has 13 spectral bands, designed to provide images that can be used to distinguish between different crop types as well as data on numerous plant features, such as active chlorophyll content and leaf water content, all of which are essential to accurately monitor plant growth.

This kind of information helps informed decisions to be made, whether they are about deciding how much water or fertiliser is needed for a maximum harvest or for forming strategies to address climate change.

Revealing interior temperature of Antarctic ice sheet

As ESA’s SMOS satellite celebrates 10 years in orbit, yet another result has been added to its list of successes. This remarkable satellite mission has shown that it can be used to measure how the temperature of the Antarctic ice sheet changes with depth – and it’s much warmer deep down.

Halloween crack

The Copernicus Sentinel-1 mission takes us over cracks in the Brunt ice shelf, which lies in the Weddell Sea sector of Antarctica.

Using radar images from the Copernicus Sentinel-1 mission, the animation shows the evolution of two ice fractures from September 2016 until mid-October 2019. The large chasm running northwards is called Chasm 1, while the split extending eastwards is referred to as the Halloween Crack.

First spotted on 31 October 2016, the Halloween crack runs from an area known as McDonald Ice Rumples – which is where the underside of the floating ice sheet is grounded on the shallow seabed. This pinning point slows the flow of ice and crumples the ice surface into waves.

Chasm 1 on the other hand has been in place for over 25 years. It was previously stable for many years, but in 2012, it was noticed that the dormant crack started extending northwards.

Now, Chasm 1 and Halloween crack are only separated by a few kilometres. When they meet, an iceberg about the size of Greater London will break off. The two lengthening fractures have been set to intersect for years – it’s only a matter of time for the two to meet.

The Brunt shelf has been monitored by glaciologists for decades and is constantly changing. Early maps from the 1970s indicate that the ice shelf used to be a mass of small icebergs welded together by sea ice.

Calving is a natural process of the life cycle of ice shelves. Although the iceberg is of a considerable size, it will not be the largest of icebergs to calve in Antarctica. In 2017, a chunk of Larsen C broke off spawning one of the largest icebergs on record and changing the outline of the Antarctic Peninsula. 

Ice shelf movement is very unpredictable. Routine monitoring from satellites offer unprecedented views of events happening in remote regions, and show how ice shelves are responding to changes in ice dynamics, air and ocean temperatures.

As an advanced radar mission, Copernicus Sentinel-1 can image the surface of Earth through cloud and rain and regardless of whether it is day or night. This makes it an ideal mission for monitoring the polar regions, which are in darkness during the winter months and for monitoring tropical forests, which are typically shrouded by cloud.

This image is also featured on the Earth from Space video programme.

Earth from Space: Halloween crack

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-1 mission takes us over cracks in the Brunt ice shelf, which lies in the Weddell Sea sector of Antarctica.

See also Halloween crack to download the image.

SMOS 10 years in orbit

SMOS has been in orbit for a decade. This remarkable satellite has not only exceeded its planned life in orbit, but also surpassed its original scientific goals. It was designed to deliver data on soil moisture and ocean salinity which are both crucial components of Earth’s water cycle. By consistently mapping these variables, SMOS is not only advancing our understanding of the water cycle and the exchange processes between Earth’s surface and the atmosphere, but is also helping to improve weather forecasts and contributing to climate research as well as contributing to a growing number of practical everyday applications.

SMOS 10 years in orbit

SMOS has been in orbit for a decade. This remarkable satellite has not only exceeded its planned life in orbit, but also surpassed its original scientific goals. It was designed to deliver data on soil moisture and ocean salinity which are both crucial components of Earth’s water cycle. By consistently mapping these variables, SMOS is not only advancing our understanding of the water cycle and the exchange processes between Earth’s surface and the atmosphere, but is also helping to improve weather forecasts and contributing to climate research as well as contributing to a growing number of practical everyday applications.

Tracking Typhoon Hagibis from space

Hagibis was the biggest typhoon to hit Japan in decades. With extreme events like this likely to increase in number and in severity as a consequence of climate change, satellites are playing an increasingly important role in understanding and tracking huge storms.

Contract seals deal for Biomass satellite’s ride into space

Today, ESA and Arianespace signed a contract that secures the launch of the Earth Explorer Biomass satellite. With liftoff scheduled for 2022 on a Vega launch vehicle from French Guiana, this new mission is another step closer to mapping the amount of carbon stored in forests and how it changes over time though deforestation, for example.

Is Earth on fire?

Wildfires have been making headlines again this month, with multiple fires burning in Lebanon and California, but these are just some of the many fires 2019 has seen. Fires in the Amazon sparked a global outcry this summer, but fires have also been blazing in the Arctic, France, Greece, Indonesia as well as many other areas in the world.

Earth from Space: Leelanau Peninsula

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-2 missiontakes us over the Leelanau Peninsula on the northwest coast of Northern Michigan, US.

See also Leelanau Peninsula, US to download the image.

Earth from Space: Leelanau Peninsula

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-2 missiontakes us over the Leelanau Peninsula on the northwest coast of Northern Michigan, US.

See also Leelanau Peninsula, US to download the image.

Leelanau Peninsula, US

The Copernicus Sentinel-2 mission takes us over the Leelanau Peninsula on the northwest coast of Northern Michigan, US.

The region is shaped by rolling hills, large inland lakes shaped by glaciers around 20 000 years ago which form the basis for great farmland. The body of water that surrounds the peninsula is Lake Michigan, one of the five Great Lakes of North America and the only one located entirely within the US.

In the image, the bright turquoise in the water shows sediments, algae and chlorophyll in the shallower waters along the shore. The greener colours visible in Lake Leelanau to the north, Platte Lake to the west, and several inland bodies of water are due to a combination of a high chlorophyll and plant content.

The Sleeping Bear Dunes Lakeshore extend for around 55 km along the coast of the peninsula, and is visible in light brown. The name comes from an Ojibwa legend in which a mother bear and her two cubs swim across the lake trying to escape a forest fire. The two cubs are said to have disappeared in the process, and the mother bear waited for weeks for them to re-surface before finally falling asleep and never waking. Touched by her suffering, a powerful spirit is said to have covered her with sand, and raised the two cubs above the water, creating the North and South Manitou islands, visible north of the peninsula.

A more realistic explanation of the creation of the Sleeping Bear Dunes is geology. During the last Ice Age, glaciers spread southwards from Canada burying this area under sheets of ice. During the process, piles of sand and rock were deposited in the area. When the ice retreated and melted, it left the hilly terrain that exists along the lake today. The area is popular for hiking and climbing.

This image, which was captured on 18 October 2018, is also featured on the Earth from Space video programme.

D28 iceberg takes a turn

Earlier this month, the D28 iceberg was spotted breaking off from the Amery Ice Shelf in Antarctica. The iceberg, which is around 1600 sq km – about the size of Greater London – has now taken a 90 degree turn.

Captured by the Copernicus Sentinel-1 mission, this multitemporal false-colour image shows the before and after location of the iceberg produced by this calving event. Blue shows the iceberg before separation, taken on 20 September, while the red is where the iceberg was on 19 October after calving. Small red fragments of the iceberg can be seen floating in the vicinity of D28.

Approximately 30 km wide and 60 km long, and with a thickness exceeding 200 m, the iceberg is estimated to contain over 300 billion tonnes of ice.

Emerging cracks in the Pine Island Glacier

The Copernicus Sentinel-1 and Sentinel-2 satellites have revealed new cracks, or rifts, in the Pine Island Glacier – one of the primary ice arteries in the West Antarctic Ice Sheet. The two large rifts were first spotted in early 2019 and have each rapidly grown to approximately 20 km in length. 

Earth from Space

Korean Peninsula

Earth from Space: Korean Peninsula

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-3 mission takes us over the Korean Peninsula in East Asia.

See also Korean Peninsula to download the image.

Earth from Space: Korean Peninsula

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-3 mission takes us over the Korean Peninsula in East Asia.

See also Korean Peninsula to download the image.

Korean Peninsula

The Korean Peninsula in East Asia can be seen in this image captured by the Copernicus Sentinel-3 mission. The peninsula is over 900 km long and is located between the Sea of Japan, also known as the East Sea, to the east and the Yellow Sea to the west.

The peninsula is divided into two countries – the Democratic People's Republic of Korea (North Korea) and the Republic of Korea (South Korea).

North Korea is divided into nine provinces, with Pyongyang as the capital. Pyongyang, which can be seen in light grey in the upper left of the image, lies on the banks of the Taedong River and on a flat plain about 50 km inland from the Korea Bay.

The capital of South Korea is Seoul, which is in the northwest of the country, slightly inland and around 50 km south of the North Korean border.

As the image shows, the Korean peninsula is mostly mountainous and rocky, making less than 20% of the land suitable for farming.

The Yellow Sea owes its name to the silt-laden waters from the Chinese rivers that empty into it. It is also one of the largest shallow areas of continental shelf in the world with an average depth of around 50 m.

The waters off the coast of Korea are considered among the best in the world for fishing. The warm and cold currents attract a wide variety of species and the numerous islands, inlets and reefs provide excellent fishing grounds.

Sentinel-3 is a two-satellite mission to supply the coverage and data delivery needed for Europe’s Copernicus environmental monitoring programme. Each satellite’s instrument package includes an optical sensor to monitor changes in the colour of Earth’s surfaces. It can be used, for example, to monitor ocean biology and water quality.

This image, which was captured on 21 May 2019, is also featured on the Earth from Space video programme.

Ice shelf Getz smaller

B47 breaks off Getz Ice Shelf

A large iceberg, approximately 260 sq km, recently calved from the Getz Ice Shelf in West Antarctica. Using images from the Copernicus Sentinel-1 mission from 2 September to 14 October 2019, this animation shows the berg breaking off before spinning around in the Amundsen Sea.

The iceberg is approximately 35 km in length, and 10 km wide. Named B47 by the US National Ice Center (NIC), the iceberg was first discovered and confirmed using Copernicus Sentinel-1 imagery by an analyst from the US NIC.

The Copernicus Sentinel-1 mission carries radar, which can return images regardless of day or night and this allows us year-round viewing, which is especially important through the long, dark, austral winter months.

Fellowship Call

Fellowship Call

To support postdocs initiate a scientific career in Earth observation and Earth system science, ESA’s Living Planet Fellowship Call is open. Apply before 1 November 2019

Fellowship Call

Fellowship Call

To support postdocs initiate a scientific career in Earth observation and Earth system science, ESA’s Living Planet Fellowship Call is open. Apply before 1 November 2019

Fellowship Call

Fellowship Call

To support postdocs initiate a scientific career in Earth observation and Earth system science, ESA’s Living Planet Fellowship Call is open. Apply before 1 November 2019

Lake Natron

Earth from Space

Lake Natron, Tanzania

The Copernicus Sentinel-2 mission takes us over two saline lakes in East Africa: the larger Lake Natron in northern Tanzania and the smaller Lake Magadi, just over the border in Kenya.

Lake Natron is around 60 km long and is fed mainly by the Ewaso Ng'iro River. Despite its dark colour in this image, Lake Natron is often bright red owing to the presence of microorganisms that feed on the salts of the water.

The saline waters make the lake inhospitable for many plants and animals, yet the surrounding salt water marshes are a surprising habitat for flamingos. In fact, the lake is home to the highest concentrations of lesser and greater flamingos in East Africa, where they feed on spirulina – a green algae with red pigments.

The extinct Gelai Volcano, standing at 2942 m tall, is visible southeast of the lake.

The pink-coloured waters of Lake Magadi can also be seen at the top of the image. The lake is over 30 km long and has a notably high salt content, and in some places the salt is up to 40 metres thick. The mineral trona can also be found in the lake’s waters. This mineral is collected and used for glass manufacturing, fabric dyeing and paper production.

Copernicus Sentinel-2 is a two-satellite mission to supply the coverage and data delivery needed for Europe’s Copernicus programme. The mission’s frequent revisits over the same area and high spatial resolution allow changes in inland water bodies to be closely monitored.

This image, which was captured on 3 February 2019, is also featured on the Earth from Space video programme.

Earth from Space: Lake Natron

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-2 mission takes us over two saline lakes in East Africa.

See also Lake Natron, Tanzania to download the image.

Earth from Space: Lake Natron

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-2 mission takes us over two saline lakes in East Africa.

See also Lake Natron, Tanzania to download the image.

Typhoon Hagibis

Typhoon Hagibis

Typhoon Hagibis

Can oceans turn the tide on the climate crisis?

As we pump more greenhouse gases into the atmosphere, the world is warming at an alarming rate, with devastating consequences. While our vast oceans are helping to take the heat out of climate change, new research shows that they are absorbing a lot more atmospheric carbon dioxide than previously thought – but these positives may be outweighed by the downsides.

Can oceans turn the tide on the climate crisis?

As we pump more greenhouse gases into the atmosphere, the world is warming at an alarming rate, with devastating consequences. While our vast oceans are helping to take the heat out of climate change, new research shows that they are absorbing a lot more atmospheric carbon dioxide than previously thought – but these positives may be outweighed by the downsides.

The Netherlands

Earth from Space

Earth from Space

Earth from Space: The Netherlands

In this week's edition of the Earth from Space programme, the Copernicus Sentinel-2 mission takes us over part of the Netherlands for an ESA open day.

See also The Netherlands to download the image.

Amery berg

World Space Alliance continues to strengthen

The ESA–SAP World Space Alliance continues to grow as Airbus Defence and Space, the Environmental Systems Research Institute and GeoVille join the partnership.

World Space Alliance continues to strengthen

The ESA–SAP World Space Alliance continues to grow as Airbus Defence and Space, the Environmental Systems Research Institute and GeoVille join the partnership.

Meeting of waters

Earth from Space

Beijing's starfish airport

Beijing's starfish airport

A year trapped in Arctic ice for climate science

As millions of people around the world marched for urgent action on climate change ahead of this week’s UN Climate Action Summit, an icebreaker set sail from Norway to spend a year drifting in the Arctic sea ice. This extraordinary expedition is set to make a step change in climate science – and ESA is contributing with a range of experiments.

Vake | Catch wins 2019 Space App Camp

An app that will help wild fisheries achieve sustainable operations using Copernicus Sentinel-3 data took home the top prize at this year’s Space App Camp at ESA’s Earth observation centre in Frascati, Italy.

A new satellite to understand how Earth is losing its cool

Following a rigorous selection process, ESA has selected a new satellite mission to fill in a critical missing piece of the climate jigsaw. By measuring radiation emitted by Earth into space, FORUM will provide new insight into the planet’s radiation budget and how it is controlled.

Clarence Strait

Earth from Space

Harnessing artificial intelligence for climate science

Over 700 Earth observation satellites are orbiting our planet, transmitting hundreds of terabytes of data to downlink stations every day. Processing and extracting useful information is a huge data challenge, with volumes rising quasi-exponentially.

Using a data cube to assess changes in the Earth system

Researchers all over the world have a wealth of satellite data at their fingertips to understand global change, but turning a multitude of different data into actual information can pose a challenge. Using examples of Arctic greening and drought, scientists at ESA’s ɸ-week showed how the Earth System Data Lab is making this task much easier.

First day of camp

ɸ-week highlights

ɸ-week highlights

Relive ɸ-week

Winning bootcamp ideas at Φ-week

On the sidelines of ESA’s Φ-week, a five-day app-development bootcamp took place where young developers came together to solve big industry challenges using Earth observation data. The teams developed app prototypes, which were tested by a set of users. Those with the best commercial potential were awarded with prizes.

Baja California

Earth from Space

First Earth observation satellite with AI ready for launch

A few months from now will see the launch of the first European satellite to demonstrate how onboard artificial intelligence can improve the efficiency of sending Earth observation data back to Earth. Dubbed ɸ-Sat, or PhiSat, this revolutionary artificial intelligence technology will fly on one of the two CubeSats that make up the FSSCat mission – a Copernicus Masters winning idea.

Tracing the environmental impacts of supply chains

Globalisation and international trade allow us to consume produce from all over the world. But this comes at a cost to the environment – but, for the first time, satellite data combined with artificial intelligence is being usedtoprovide information to assess the impact of global supply chains.

Using machine learning for rewilding

There may not be an obvious connection between rewilding and machine learning, but as highlighted today at ESA’s ɸ-week, a project in the Netherlands uses satellite data and new digital technology to understand how a nature reserve responds to the pressure of being grazed by herbivores.

Using artificial intelligence to automate sea-ice charting

Reliable maps of sea-ice conditions and forecasts are of vital importance for maritime safety, safe navigation and planning. The continued retreating and thinning of Arctic sea ice calls for a more effective way of producing detailed and timely ice information – which is where artificial intelligence  comes in.

Using artificial intelligence to automate sea-ice charting

Reliable maps of sea-ice conditions and forecasts are of vital importance for maritime safety, safe navigation and planning. The continued retreating and thinning of Arctic sea ice calls for a more effective way of producing detailed and timely ice information – which is where artificial intelligence comes in.

Australian bushfires

ESA’s ɸ-week 2019 opens with a flourish

Following the success of last year’s ɸ-week, this year’s event promises to be even more exciting. With the conference room packed to the gunwales, ɸ-week 2019 kicked off this afternoon at ESA’s centre of Earth observation in Italy with a series of stimulating talks, lively debate and an announcement of a new initiative.

ESA and ɸ

AI for space

Monitoring air pollution from fires

The wildfires that have been devastating the Amazon rainforest have been international headline news over the last weeks. These fires are not only an environmental tragedy in terms of lost forest and biodiversity, but they are also leaving their mark on the atmosphere, affecting air quality and, potentially, the global climate.

Castelli Romani

Earth from Space

Fellowship Call

Fellowship Call

ɸ-week live

Copernicus Sentinel-6A ready for testing

Dedicated to measuring changes in global sea level, the Copernicus Sentinel-6A satellite is now equipped with some of its measuring instruments and ready to be tested in preparation for liftoff at the end of next year.

Call for media

Dorian destruction

Greta Thunberg arrives in New York for UN Climate Talks

Climate campaigner Greta Thunberg has arrived in New York after a two-week sail across the Atlantic, ready to attend the United Nations Climate Action Summit at the end of September.

Raft of rubble

Fires ravage the Amazon

Thousands of fires have broken out in the Amazon rainforest. Satellite data show that there are almost four times as many fires this year compared to the same period last year. Apart from Brazil, parts of Peru, Bolivia, Paraguay and Argentina have also been affected.

Gran Canaria wildfire

CryoSat conquers ice on Arctic lakes

The rapidly changing climate in the Arctic is not only linked to melting glaciers and declining sea ice, but also to thinning ice on lakes. The presence of lake ice can be easily monitored by imaging sensors and standard satellite observations, but now adding to its list of achievements, CryoSat can be used to measure the thickness of lake ice – another indicator of climate change.

Washed up: Sargassum blankets beaches

Over the last month, massive quantities of the Sargassum seaweed have been washing up on the shores of Mexico, Florida in the US and some Caribbean islands, creating a serious environmental problem and causing havoc for the tourist industry. ESA has been tracking this slimy infestation from space.

Washed up: Sargassum blankets beaches

Over the last month, massive quantities of the Sargassum seaweed have been washing up on the shores of Mexico, Florida in the US and some Caribbean islands, creating a serious environmental problem and causing havoc for the tourist industry. ESA has been tracking this slimy infestation.

Siberian wildfires

Lake Balaton

Earth from Space

Too hot to handle

Expanding our knowledge of Arctic Ocean bathymetry

Our knowledge of the depth and shape of the Arctic Ocean floor – its bathymetry – is insufficient. Owing to year-round sea-ice coverage and the cost of research in this remote region, much of the Arctic Ocean’s bathymetry has remained a mystery, until now.

Second laser boosts Aeolus power

ESA’s Aeolus satellite, which carries the world’s first space Doppler wind lidar, has been delivering high-quality global measurements of Earth’s wind since it was launched almost a year ago. However, part of the instrument, the laser transmitter, has been slowly losing energy. As a result, ESA decided to switch over to the instrument’s second laser – and the mission is now back on top form.

Monitoring Earth’s skin heat for crops and climate

A bright red twin-engined aircraft, equipped with ultra-high-resolution thermal imaging technology has been scouring the agricultural heartlands of Europe this summer. It was no search and rescue exercise, but an initial step towards building a proposed new satellite system capable of recording the temperature of Earth’s skin in intricate detail.

Palm oil plantations

Earth from Space

Replay: Earth Explorer 9

Apollo 11 launch pad

Earth Explorer 9

Earth Explorer 9

Mount Fuji

Earth from Space

Using satellite information to help rebuild after a disaster

ESA and the Asian Development Bank have joined forces to help the Indonesian government use satellite information to guide the redevelopment following the earthquake and tsunami that devastated the provincial capital of Palu and surroundings last year.

Modelling tides in the Arctic Ocean

We are all aware of the ebb and flow of the tide every day, but understanding tidal flow is important for a range of maritime activities and environmental monitoring, such as search and rescue operations, shipping routes and coastal erosion. The Arctic Ocean tides are particularly difficult to understand, but a new tidal model produced using ESA satellite data may shed some light on what is happening in this remote area.

What’s happening to Greenland’s ice?

Heatwave conditions catapulted Greenland into an early Arctic summer in June, prompting widespread melting across its icesheet surface, according to researchers at the Danish Meteorological Institute.

Irminger Sea ice swirl

Earth from Space

Rare lava lake

Join ɸ-week

German wildfire

Surviving the shaker brings better weather forecasting a step closer

With the first in the next generation of Meteosat satellites due to be launched in a couple of years, an important milestone has been passed, further paving the way for better weather forecasts – something on which we all rely.

Gulf of Taranto

Earth from Space

The heat is on

The heat is on

Fire red lines