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Comet C/2023 A3 brightens SOHO’s week

Video: 00:00:23 From 7 until 13 October 2024, ESA/NASA’s SOHO spacecraft recorded Comet C/2023 A3 (Tsuchinshan–ATLAS), the second brightest comet it has ever seen. Meanwhile, large amounts of material were being spewed out by the Sun (covered in the centre), and planet Mercury is visible to the left. The comet’s nucleus is clearly visible, surrounded […]

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Hera takes flight: Didymos, here we come

The day began with an 85% chance that bad weather would cause a launch delay: it ended with ESA’s Hera mission successfully in space and en route to the Didymos binary asteroid system. At 16:52 CEST (14:52 UTC) on 7 October 2024, Hera took to the skies aboard a SpaceX Falcon 9 rocket from Cape […]

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Space-made weld scrutinised in ESA lab

ESA engineers have focused microscopes, hardness testers and an X-ray computer aided tomography machine onto a special aluminium weld just a single centimetre across – the historic result of the very first autonomous welding to be performed in space, and the first ESA has been involved with. To source

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Sound of Earth’s magnetic flip 41 000 years ago

Video: 00:01:20 Approximately 41 000 years ago, Earth’s magnetic field briefly reversed during what is known as the Laschamp event. During this time, Earth’s magnetic field weakened significantly—dropping to a minimum of 5% of its current strength—which allowed more cosmic rays to reach Earth’s atmosphere. Scientists at the Technical University of Denmark and the German […]

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First all-new MetOp complete and sibling in testing

With all instruments integrated, the first MetOp Second Generation-A, MetOp-SG-A1, weather satellite is now fully assembled and on schedule for liftoff next year. Meanwhile, its sibling, MetOp-SG-B1, is undergoing rigorous testing to ensure that it will withstand the vacuum and extreme temperature swings of space. To source

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