Like mariners of old, spacecraft steer by the stars—using combinations of telescopes, cameras and computers called startrackers to recognize stellar constellations to calculate their own position in space.
Space Exploration
Sep 7, 2023
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International regulations on space debris mitigation set a limit on how long a satellite should linger in orbit once its mission is complete—it mustn't be longer than 25 years.
Space Exploration
Sep 6, 2023
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Scientists have used Solar Orbiter's EUI camera in a new mode of operation to record part of the sun's atmosphere at extreme ultraviolet wavelengths that has been almost impossible to image until now. This new mode of operation ...
Astronomy
Sep 6, 2023
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The X-Ray Imaging and Spectroscopy Mission (XRISM) is ready to launch on 7 September 2023 to observe the most energetic objects and events in the cosmos. In doing so, it will unveil the evolution of the universe and the structure ...
Astronomy
Sep 4, 2023
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Validation testing continues for ESA's all-new Ariane 6 launch vehicle, with firing of its two upper stage engines to simulate the way they will have to operate together during a flight.
Space Exploration
Sep 4, 2023
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During his Huginn mission, ESA astronaut Andreas Mogensen will run two experiments focusing on sleeping in space: Circadian Light and Sleep in Orbit.
Space Exploration
Sep 1, 2023
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Space exploration presents unique health challenges for astronauts due to lack of gravity, isolation, and radiation exposure. ESA's SciSpacE activities aim to comprehend these effects and their implications for human well-being ...
Space Exploration
Aug 31, 2023
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Dropcoal, short for drop coalescence, is a research project that studies how droplets form in space and on Earth. The results will grant insights into raindrop and cloud formation, fuel combustion and interactions between ...
Space Exploration
Aug 29, 2023
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A month after fires ravaged the island of Rhodes in July 2023, more fires have ripped through Greece this week as southern Europe swelters under a late summer heat wave. This Copernicus Sentinel-2 image shows the ongoing ...
Earth Sciences
Aug 25, 2023
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One of the precision formation flying Proba-3 satellites as seen from the other during ground testing. The pair will fly in orbit relative to one another down to millimeter scale precision, but in order to do this must keep ...
Space Exploration
Aug 25, 2023
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