European Space Agency

André Kuipers is one of a handful of astronauts who has had to 'shelter-in-place' from a piece of marauding space debris. View the full article

Video: 00:01:31 Our planet is surrounded by spacecraft helping us study our changing climate, save lives following disasters, deliver global communication and navigation services and help us answer important scientific questions. But these satellites are at risk. Accidental collisions between objects in space can produce huge clouds of fast-moving debris that can spread and damage additional satellites with cascading effect. In this animation, find out how teams at ESA’s European Space Operations Centre in Darmstadt, Germany, take action to keep satellites safe after receiving an alert warning of a possible collision between an active satellite and a piece of space debris. When the alert is raised, ESA experts determine the risk of a collision and plan a collision avoidance manoeuvre that can be used to get the satellite out of harm’s way if necessary. Additional observations of the piece of space debris help the team better understand its path and the risk of collision. If that risk remains too high (typically 1 in 10 000), the planned manoeuvre is carried out to temporarily change the orbit of the satellite until the threat has passed. Each manoeuvre comes at a price. They take skill and time to plan, cost precious fuel – shortening the lifetime of the mission – and often require instruments to be temporarily shut off, preventing them from collecting important data. While most alerts do not end up requiring evasive action, the number of alerts is rapidly increasing. Hundreds are already issued every week. Several companies have begun to launch large constellations into low-Earth orbit to provide global internet access. They have great benefits, but could be a source of huge disruption if we do not change our behaviour. In just a few years, our current methods for avoiding collisions in space will no longer be enough. To safeguard humankind’s continued access to space for future generations, ESA is developing technologies for an automated collision avoidance system. Find out more about ESA’s Space Debris and Clean Space Offices, both part of the Space Safety Programme, and the Agency’s conference on space debris - the world’s largest on the topic - taking place in April 2021. View the full article

Latest: NASA and SpaceX now are targeting 23 April at 10:49 BST (11:49 CEST) for the launch of the Crew-2 mission to the International Space Station due to unfavourable weather conditions along the flight path on Thursday. French ESA astronaut Thomas Pesquet is returning to the International Space Station on his second spaceflight. The mission, which is called Alpha, will see the first European to launch on a US spacecraft in over a decade. Thomas is flying on the Crew Dragon, alongside NASA astronauts Megan McArthur and Shane Kimbrough, and Japanese astronaut Aki Hoshide. View the full article

Image: Arrival of world-first test facility View the full article

Alpha View the full article

Image: 20 years of Europeans on the Space Station View the full article

Space technologies and satellite applications are set to boost green financial innovation in Europe, creating jobs and boosting prosperity. View the full article

Oceans play a vital role in taking the heat out of climate change, but at a cost. New research supported by ESA and using different satellite measurements of various aspects of seawater along with measurements from ships has revealed how our ocean waters have become more acidic over the last three decades – and this is having a detrimental effect on marine life. View the full article

On 21 April 2001, ESA astronaut Umberto Guidoni first set foot, or hand, on the International Space Station, making him the first European to visit and work the orbiting outpost. Since then, the Space Station has grown immensely, as have the number of Europeans to have worked in it, together with the science experiments performed in orbit. View the full article

With ESA positioned as a world-class provider of Earth observation data and the United Nations Food and Agriculture Organization (FAO) leading international efforts to defeat hunger, the two organisations have teamed up to exploit their particular fields of expertise to better address major global issues such as food security, and to take further advantage of the digital transformation in agriculture. View the full article

Video: 00:12:38 The launch of Sputnik, humankind’s first satellite, in 1957 marked the dawn of a new era for the people of the 'Pale Blue Dot'. Decades later, our planet is now surrounded by spacecraft carrying out extraordinary work to study our changing climate, save lives following disasters, deliver global communication and navigation services and help us answer important scientific questions. But these satellites are at risk. Accidental collisions between objects in space can produce huge clouds of fast-moving debris. These clouds can spread and damage additional satellites with cascading effect, eventually making the most useful orbits around Earth no longer safe for spacecraft or people. Satellites today have to carry out collision avoidance manoeuvres to avoid possible impact with debris. These are costly, and hundreds of collision avoidance alerts are already issued every week. And this is nothing compared to what is coming. Several companies have begun to launch mega-constellations into low-Earth orbit to provide global internet access. They have great benefits, but could be a source of huge disruption if we do not change our behaviour. Our current methods for avoiding collisions in space will become inadequate in just a few years – and even compliance with space debris mitigation guidelines may no longer be enough. It’s time to act. ESA is developing technologies for an automated collision avoidance system, as well as methods for refuelling, repairing and upgrading satellites in orbit, extending the lifetime of missions and potentially reducing the number of new satellites that need to be launched. ESA is also working on debris removal missions that will fly up to dead spacecraft and debris objects, capture them and move them to safety – either by sending them down to burn up in Earth’s atmosphere or up into ‘graveyard orbits’. By reaching into space, we have brought huge benefits down to Earth, providing technologies that enrich our societies, connect people in previously unimaginable ways and give us an incredible perspective and understanding of our planet. We know what will happen if we continue on our current path, but we also know exactly what we need to do to change that fate and ensure humankind's access to space is guaranteed for future generations. Find out more View the full article

Video: 00:04:00 This month marks the 20th anniversary of the first European mission to the International Space Station (ISS). On 19 April 2001, Italian ESA Astronaut, Umberto Guidoni launched to the ISS on space shuttle Endeavour for a mission that included installing the Canadarm2 robotic arm and transferring scientific equipment and experiments. Since then, there have been a further 26 European missions to the ISS and three ESA astronauts have served as commander. ESA astronauts Thomas Pesquet and Matthias Maurer will both launch to the ISS this year. The ISS has hosted more than 3000 scientific experiments and is providing vital insights on the effects of long duration spaceflight for future human missions to the Moon and Mars. A-roll includes newly-digitised archive of Umberto’s flight and new interviews with astronaut and head of the European Astronaut Centre, Frank De Winne (via zoom), and Nicole Buckley, SciSpace Team leader, ESA (in-person filming at ESTEC). B-roll includes additional soundbites (also in French and Dutch), further archive and new footage of ESA astronauts Thomas Pesquet and Matthias Maurer during training for their forthcoming missions. View the full article

Video: How Galileo works, for its 2 billion global users View the full article

The winners of the first ESA-EGU Excellence Award were awarded their prizes earlier today at the virtual EGU General Assembly ceremony, attended by ESA’s Director General, Josef Aschbacher and ESA’s Acting Director of Earth Observation Programmes, Toni Tolker-Nielsen. View the full article

Video: 00:30:26 ESA astronaut Thomas Pesquet is set to go back to the International Space Station on SpaceX’s Crew Dragon spacecraft on 22 April 2021. Watch the replay of the media Q+A session held on 19 April with Thomas (in English and French) to learn more about his upcoming Alpha mission to the ISS. View the full article

At ESA, every day is Earth Day. As we humans continue to subject our home planet to increasing pressures, we are better placed than ever to understand and monitor the consequences of what we inflict. Astronauts onboard the International Space Station give us the human perspective of how beautiful Earth is, while satellites orbiting above return systematic measures to take the pulse of our planet 24 hours a day. These measurements allow us to understand how Earth works as a system and how human activity is changing natural processes, leading to climate change. This information is fundamental to global climate policy-making through international bodies such as the Intergovernmental Panel on Climate Change and UN Climate Change Conferences, the next being COP26 later this year. Celebrate Earth Day with ESA with this compilation of content and activities now available. View the full article

View the full article

Earth-inspired wall art celebrating Earth Day View the full article

Video: 00:02:18 In 2008, Thomas Pesquet applied to become an ESA astronaut. On 22 April 2021, he will fly his second mission to the International Space Station. In this video Thomas shares how he found his way to space, and encourages viewers to follow their passions as ESA seeks its next class of astronauts. Nobody is perfect on their first attempt at a task, but Thomas says the only way to improve is to try and keep trying. Though becoming an astronaut seemed a distant dream when he was younger, by continuing to challenge himself and learn along the way he developed the skills he needed to put himself forward and become one of a small group who have travelled to space. Whatever your passion, his advice is universal: try your best, and if you don’t succeed it doesn’t matter. What does matter is perseverance. Find out more about how you can apply to become an ESA astronaut and explore other ESA careers at esa.int/YourWayToSpace View the full article

Week in images: 12 - 16 April 2021 Discover our week through the lens View the full article

Image: False-colour images captured by Copernicus Sentinel-2 show the aftermath of the explosive volcanic eruption that took place on 9 April 2021 on the Caribbean island of Saint Vincent. View the full article

On 22 April 2021, on Earth Day, Thomas Pesquet is planned to return to the International Space Station for his second mission, Alpha. Ahead of his launch, the Copernicus Sentinel-2 mission takes us over Cape Canaveral, USA, in a region known as the Space Coast. View the full article

One of the most comprehensive pictures of our changing planet is now available to the public. Thanks to the close collaboration between Google Earth, ESA, the European Commission, NASA and the US Geological Survey, 24 million satellite photos from the past 37 years have been embedded into a new layer of Google Earth – creating a new, explorable view of time on our planet. View the full article

Josef Aschbacher and Simonetta di Pippo discuss space debris View the full article

Image: Drone test of Hera mission asteroid radar View the full article