Alexandra Witze
Alexandra Witze
Freelance WriterSource
Boulder, Colorado
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Space is turning into a dangerous junkyard

Space is turning into a dangerous junkyard

Illustration: Jim Starr360°Space is turning into a dangerous junkyardLENSESSScienceGGeopoliticsPPolicyDefunct rockets, satellites and other debris litter the skies. Giant nets, harpoons and robot claws might be part of the solution.ContributorsWhat are 360s? Grid’s answer to stories that deserve a fuller view.LENSESAstronauts aboard the International Space Station scrambled for shelter last November as their fragile home flew through an unexpected cloud of debris 300 miles above Earth. A Russian antisatellite missile had slammed into a defunct satellite as part of a weapons test, blowing it...

June 22, 2022
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Second Ever Interstellar Comet Contains Alien Water

Second Ever Interstellar Comet Contains Alien Water

Astronomers have spotted signs of water spraying off comet 2I/Borisov, which is flying towards the Sun on a journey from interstellar space. It is the first time scientists have seen water in our Solar System that originated somewhere else.“There’s water—that’s cool, that’s great,” says Olivier Hainaut, an astronomer at the European Southern Observatory in Garching, Germany. The discovery isn’t surprising, he says, because most comets contain a lot of water. But confirming its presence in an interstellar comet is an important step towards understanding how water might travel between the...

November 3, 2019
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