Space News & Blog Articles

The world’s first mission to remove several small telecommunications satellites from orbit once they reach the end of their operational service is about to start building and testing its prototype spacecraft.

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Earth’s oceans are huge heat stores, soaking up 93% of the excess heat from human activity over the past 70 years. Ocean currents redistribute heat around the planet, from the Equator to the poles. Where this ocean heat goes influences weather patterns and regional climate. As well as absorbing heat, oceans are a natural carbon sink, absorbing a quarter of carbon dioxide emissions from human activity. This has led to the acidification of ocean water, threating marine life.
The amount of heat and carbon dioxide absorbed depends on a number of ocean variables, all of which can be measured from space.

Set off on your next adventure with the Paxi collection

With scientific excellence at the very heart of ESA’s FutureEO programme, participants at this week’s Living Planet Symposium have been making it clear that new research missions to advance Earth science must continue to be realised in the future.

The effects of our warming climate are seen across a multitude of measures, usually as incremental changes: more frequent extreme weather, heatwaves, droughts and wildfires. The cumulative impact of these changes, however, can cause fundamental parts of the Earth system to change more quickly and drastically. These ‘tipping points’ are thresholds where a tiny change pushes the system into an entirely new state.

For the first time ever recorded, in the late summer of 2021, rain fell on the high central region of the Greenland ice sheet. This extraordinary event was followed by the surface snow and ice melting rapidly. Researchers now understand exactly what went on in those fateful summer days and what we can learn from it.

Earth observation is already capable of supporting national climate action, but there are many more opportunities on the horizon, according to discussions today among leading scientists and policymakers at ESA’s Living Planet Symposium being held in Bonn, Germany.

Hundreds of satellite images spanning 30 years have been compiled to show the evolution of the Danube Delta – the second largest river delta in Europe. These findings were presented today at ESA’s Living Planet Symposium taking place this week in Bonn, Germany.

Global climate change is the single most challenging issue faced by humanity – affecting every region, continent and ocean on Earth. It fuels a range of other top-level challenges such as food security, migration, biodiversity loss, risks to human health and economic losses.

While volcanic eruptions and earthquakes serve as immediate reminders that Earth’s insides are anything but tranquil, there are also other, more elusive, dynamic processes happening deep down below our feet. Using information from ESA’s Swarm satellite mission, scientists have discovered a completely new type of magnetic wave that sweeps across the outermost part of Earth’s outer core every seven years. This fascinating finding, presented today at ESA’s Living Planet Symposium, opens a new window into a world we can never see.

ESA’s Living Planet Symposium has opened with a flourish with over 4000 participants including scientists, academics, space industry representatives, institutional stakeholders, data users, students and citizens gathered to discuss the latest findings on our changing planet, as well as advances in satellite technologies, new opportunities in the commercial world, and ESA’s plans for the future.

Astronauts live and work in orbit along with teaming populations of microorganisms, which could present a serious threat to health – and even the structural integrity of spacecraft. To help combat such invisible stowaways, an ESA-led project is developing microbe-killing coatings suitable for use within spacecraft cabins.

Week in images: 16-20 May 2022

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“ESA’s Juice mission has entered its final phase of development, with the spacecraft moving to an Airbus Defence & Space facility in Toulouse, France, for the next round of testing. The spacecraft has been fully integrated, and these tests will be done in full flight configuration, as Juice is scheduled for launch from Europe’s Spaceport in Kourou, French Guiana, in April 2023

ESA’s Living Planet Symposium – one of the largest Earth observation conferences in the world – is being held on 23–27 May in Bonn, Germany. Held every three years, the symposium brings together scientists and researchers, as well as industry and users of Earth observation data, from all over the world to present and discuss the latest findings on Earth science.

Image: Volunteers watching the skies

Image: A dazzling Hubble collection of supernova host galaxies

International collaboration among space agencies is central to the success of satellite Earth observation and data analysis. ESA, NASA and JAXA (Japan Aerospace Exploration Agency) have continued their joined effort to develop a storytelling dashboard that combines their resources and expertise to strengthen our global understanding of the changing environment and its economic effects.

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On 26 March and enduring temperatures of some 500 degrees Celsius from within the orbit of planet Mercury, Solar Orbiter returned spectacular imagery of the Sun during its first close encounter with our home star. Detailed new movies show activity in the solar atmosphere and reveal a variety of features, including something scientists are nicknaming ‘the hedgehog’ with spikes of hot gas reaching out in all directions. 

Powerful flares, breathtaking views across the solar poles, and a curious solar ‘hedgehog’ are amongst the haul of spectacular images, movies and data returned by Solar Orbiter from its first close approach to the Sun. Although the analysis of the new dataset has only just started, it is already clear that the ESA-led mission is providing the most extraordinary insights into the Sun’s magnetic behaviour and the way this shapes space weather.