Search results for comets

Space Exploration Feb 19, 2019

Rosetta's comet sculpted by stress

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 4, 2019

'Oumuamua could be the debris cloud of a disintegrated interstellar comet

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 Jan 23, 2019

Scientist sheds light on Titan's mysterious atmosphere

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 18, 2019

Image: Jupiter-family comet 46P Wirtanen

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 Dec 21, 2018

Researcher captures rare radar images of Comet 46P/Wirtanen

Barely visible to the naked eye, Comet 46P/Wirtanen keeps some secrets so close that only radar can uncover them.

Space Exploration Dec 20, 2018

NASA telescopes take a close look at the brightest comet of 2018

As the brilliant comet 46P/Wirtanen streaked across the sky, NASA telescopes caught it on camera from multiple angles.

Space Exploration Dec 20, 2018

ALMA gives passing comet its close-up

As comet 46P/Wirtanen neared Earth on December 2, astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) took a remarkably close look the innermost regions of the comet's coma, the gaseous envelope around ...

Space Exploration Dec 20, 2018

Comet hunters successfully observe Wirtanen with newly modernized instrument

Astronomers are being treated to an exciting view of Comet 46P/Wirtanen at W. M. Keck Observatory, with sharper-than-ever data images of this icy and rocky space visitor.

Space Exploration Dec 16, 2018

December comet brings back Rosetta memories

A special visitor is crossing the sky: Comet 46P/Wirtanen, sighted with telescopes and binoculars in recent weeks, is on the way to its closest approach to Earth this weekend, when it might become visible to the naked eye.

Space Exploration Dec 14, 2018

See a passing comet this Sunday

On Sunday, Dec. 16, the comet known as 46P/Wirtanen will make one of the 10 closest comet flybys of Earth in 70 years, and you may even be able to see it without a telescope.

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