Space News & Blog Articles

Image: Mini-radar for asteroid CubeSat

Image: Ten years: Warsaw at night

Extremely high temperatures recorded this summer caused record melting across Svalbard – one of the fastest warming places on the planet. The Copernicus Sentinel-2 mission captured this rare, cloud-free acquisition of the Norwegian archipelago in August 2022.

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The ESA-led Solar Orbiter mission has experienced its second close encounter with the Sun. It is delivering more stunning data, and at higher resolution than ever before.

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Meet Hera, our very own asteroid detective. Together with two CubeSats – Milani the rock decoder and Juventas the radar visionary – Hera is off on an adventure to explore Didymos, a double asteroid system that is typical of the thousands that pose an impact risk to planet Earth.

Satellite navigation is headed closer to users. ESA’s Navigation Directorate is planning an in-orbit demonstration with new navigation satellites that will orbit just a few hundred kilometres up in space, supplementing Europe’s 23 222-km-distant Galileo satellites. Operating added-value signals, these novel so-called ‘LEO-PNT’ satellites will investigate a new multi-layer satnav system-of-systems approach to deliver seamless Positioning, Navigation and Timing services that are much more accurate, robust and available everywhere.

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ESA’s Proba-2 captured two partial solar eclipses on 25 October 2022.

This complex region of craters and fractures in the Terra Sirenum region highlights the varied history of Mars.  The image was taken by ESA’s Mars Express on 5 April 2022.

Image: Webb explores a pair of merging galaxies

The Copernicus Sentinel-1C satellite is currently in Cannes undergoing a series of demanding tests in preparation for launch in 2023. The third member of the Sentinel-1 radar family, part of Europe’s Copernicus programme, will continue the critical task of delivering key radar imagery of Earth’s surface for a wide range of services and scientific applications.

Despite being essential to life on Earth, the magnetic field isn’t something we can actually see in itself, or ever hear. But, remarkably, scientists at the Technical University of Denmark have taken magnetic signals measured by ESA’s Swarm satellite mission and converted them into sound – and for something that protects us, the result is pretty scary.

Week in images: 17-21 October 2022

Inhambane Bay, in southeast Mozambique, is featured in this true-colour image captured by the Copernicus Sentinel-2 mission.

Astronomers looking into the early Universe have made a surprising discovery using the NASA/ESA/CSA James Webb Space Telescope. Webb’s spectroscopic capabilities, combined with its infrared sensitivity, have uncovered a cluster of massive galaxies in the process of formation around an extremely red quasar. The result will expand our understanding of how galaxies in the early Universe coalesced into the cosmic web we see today.

Image: Hubble follow-up of DART impact

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Watch the replay of our Q&A with the media to learn about the outcomes of the 310th session of the ESA Council. Updates are provided on the ambitious package presented by ESA for the 22/23 November ESA Ministerial Meeting in Paris, but also on the further expansion of ESA memberships, the future of ExoMars, Space Transportation and the overall, delicate economic situation.

After months of effort, astronomers have succeeded in capturing the momentary shadow cast by the Didymos asteroid, from tens of million km away as it passed in front of far-distant stars – a feat of observation only made possible when both the trajectory of the asteroid and the precise location of the stars are known. Even in that case, to have a chance of success, several observers had to be placed in meticulously predicted locations across the path of the shadow, to glimpse the fleeting fading of the star within just a fraction of a second.

ESA’s Navigation Directorate is planning a new satellite whose results will enable the generation of an updated global model of Earth – the International Terrestrial Reference Frame, employed for everything from land surveying to measuring sea level rise – with an accuracy down to 1 mm, while tracking ground motion of just 0.1 mm per year. This improvement, at a stroke, will have a major impact in multiple navigation and Earth science applications, including enhancing the precision of the Galileo navigation system. This mission, called GENESIS, is being proposed to ESA’s Council Meeting at Ministerial Level next month.

Ariane 6, the new heavy-lift launch system being developed by the European Space Agency, will make its inaugural flight as soon as the fourth quarter of 2023. Briefing media gathered at ESA’s Paris Bertrand headquarters on 19 October, Director General Joseph Aschbacher said sufficient progress had been made over the past several months to anticipate a Q4 2023 first flight, pending the realization of three key milestones before April next year.

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Press briefing on Ariane 6 progress at ESA Bertrand HQ, 19 October 2022: (l-r at front) Stéphane Israël (Arianespace Chief Executive), André-Hubert Roussel (ArianeGroup Chief Executive), Philippe Baptiste (CNES Chairman and Chief Executive), Joseph Aschbacher (ESA Director General), Daniel Neuenschwander (ESA Director of Space Transportation Systems)