What caused the fireballs that lit up the sky over Australia?
Over the past few days a pair of spectacular fireballs have graced Australia's skies.
Over the past few days a pair of spectacular fireballs have graced Australia's skies.
Space Exploration
May 24, 2019
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338
Where did the Earth's water come from? Although comets, with their icy nuclei, seem like ideal candidates, analyses have so far shown that their water differs from that in our oceans. Now, however, an international team, ...
Astronomy
May 23, 2019
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399
Just about a year after the launch of the NASA mission TESS, the first three comets orbiting the nearby star Beta Pictoris outside our solar system were discovered with data from the space telescope. The main goal of TESS ...
Astronomy
May 22, 2019
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461
From a distance of five million kilometres to within 20 metres, ESA's Rosetta spacecraft captured images of Comet 67P/Churyumov-Gerasimenko from all angles.
Space Exploration
Apr 24, 2019
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16
Between 2014 and 2016, the scientific camera system OSIRIS onboard ESA's Rosetta spacecraft captured almost 70000 images of comet 67P/Churyumov-Gerasimenko. They not only document the most extensive and demanding comet mission ...
Space Exploration
Apr 18, 2019
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11
UC Berkeley scientists have obtained more precise dates for the Deccan Traps volcanic lava flows, linking peak activity more closely to the asteroid or comet impact 66 million years ago and the coincident mass extinction. ...
Earth Sciences
Feb 21, 2019
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Feeling stressed? You're not alone. ESA's Rosetta mission has revealed that geological stress arising from the shape of Comet 67P/Churyumov–Gerasimenko has been a key process in sculpting the comet's surface and interior ...
Space Exploration
Feb 19, 2019
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85
Since it was first detected hurling through our solar system, the interstellar object known as 'Oumuamua has been a source of immense scientific interest. Aside from being extrasolar in origin, the fact that it has managed ...
Space Exploration
Feb 4, 2019
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97
A new Southwest Research Institute study tackles one of the greatest mysteries about Titan, one of Saturn's moons: the origin of its thick, nitrogen-rich atmosphere. The study posits that one key to Titan's mysterious atmosphere ...
Space Exploration
Jan 23, 2019
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181
The ghostly green glow at the very top of this image reveals the presence of 46P Wirtanen – a relatively small comet with an estimated diameter of 1.2 kilometers. Had the path of history taken a different course, we would ...
Space Exploration
Jan 18, 2019
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19