COBS NEWS Archive

Oct. 17, 2019

Hubble observes new Interstellar Visitor [HEIC1918]

On 12 October 2019, the NASA/ESA Hubble Space Telescope provided astronomers with their best look yet at an interstellar visitor – Comet 2I/Borisov – which is believed to have arrived here from another planetary system elsewhere in our galaxy.

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Sep. 27, 2019

Naming of new interstellar visitor: 2I/Borisov

A new object from interstellar space has been found within the Solar System, only the second such discovery of its kind. Astronomers are turning their telescopes towards the visitor, which offers a tantalising glimpse beyond our Solar System and raises some puzzling questions. The object has been given the name 2I/Borisov by the IAU.

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Sep. 14, 2019

Astronomers May Have Found an Interstellar Comet. Here's Why That Matters.

It’s looking likely that a newly discovered comet is actually an interstellar interloper from beyond our solar system. Since its discovery on 30 August, more and more measurements of C/2019 Q4 (Borisov)—named after the amateur astronomer from Crimea who found it—indicate it isn’t orbiting our Sun. Even NASA now says the comet’s extrasolar origin is promising.

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Sep. 14, 2019

Interstellar 2.0

Astronomers have spotted an object that looks likely to be a very rare visitor from outside our Solar System. If confirmed, this unusual body would be only the second interstellar object ever detected passing through our neighbourhood.

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Sep. 12, 2019

A possible interstellar comet

A new comet just discovered by amateur astronomer Gennady Borisov is rocketing through the solar system too fast for the sun's gravity to hang onto it. Indeed, it appears to be a visitor from the stars. Interstellar Comet Borisov will make its closest approach to the sun and to Earth in Dec. 2019.

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Aug. 14, 2019

An Unexpected Companion

Last week marked five years since ESA’s Rosetta probe arrived at its target, a comet named 67P/Churyumov-Gerasimenko (or 67P/C-G). Tomorrow, 13 August, it will be four years since the comet, escorted by Rosetta, reached its perihelion – the closest point to the Sun along its orbit.

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Jul. 02, 2019

'Oumuamua is not an alien spacecraft. New analysis suggests a natural origin for our first interstellar visitor.

Early reports of the interstellar visitor 'Oumuamua's odd characteristics led some to speculate that the object could be an alien spacecraft, sent from a distant civilization to examine our star system. But a new analysis by an international team of 14 astronomers strongly suggests that 'Oumuamua has a purely natural origin.

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Jun. 22, 2019

ESA to Launch Comet Interceptor Mission in 2028

With Comet Interceptor, ESA plans to meet a comet on its first trip into the inner solar system. The mission was selected Wednesday after a fast-track proposal process and will be developed on a rapid (for ESA) timeline, with a launch planned for 2028. Congratulations to the Comet Interceptor team on their selection!

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