Comets | Universe Today

Comets

Interstellar Comet 2I/Borisov Formed in a Very Cold Environment

Using the ALMA array, astronomers were able to detect the chemical composition of an interstellar object as 2I/Borisov began releasing…

3 months ago

When Comets Break Up, the Fragments Can Be Devastating If They Hit the Earth

Comet breakups are a timely topic right now. The interstellar comet 2I/Borisov just broke into at least two pieces. And…

3 months ago

Interstellar Comet 2I/Borisov Appears to Have Broken in Half

In 2019, amateur astronomer Gennadiy Borisov discovered a comet, which now bears his name. There's a long history of amateur…

3 months ago

Rosetta Saw the Building Blocks of Life on Comet 67P

Why is there so little nitrogen in Comet 67P/Churyumov-Gerasimenko (67P)? That's a question scientists asked themselves when they looked at…

6 months ago

NASA’s TESS Watched an Outburst from Comet 46P/Wirtanen

TESS, the Transiting Exoplanet Survey Satellite, has imaged an outburst from the comet 46P/Wirtanen. It caught the outburst in what…

7 months ago

Interstellar Comet Borisov is About to Make its Closest Approach to Earth

A team of astronomers from Yale have taken the clearest picture of the interstellar comet 2I/Borisov to date, showcasing its…

7 months ago

Comets and Interstellar Objects Could be Exporting Earth Life Out into the Milky Way

A new study suggests that comets and asteroids that graze Earth's atmosphere might be responsible for the spread of life…

9 months ago

Here’s the Picture We’ve Been Waiting for. Hubble’s Photo of Interstellar Comet 2I/Borisov

Leave it up to the good ole Hubble Space Telescope. The workhorse telescope has given us a photo of the…

9 months ago

Astronomers Find Cyanide Gas in Interstellar Object 2I/Borisov, but Don’t Panic Like it’s 1910

An international team of astronomers recently obtained spectra from the interstellar comet 2I/Borisov, which confirmed the presence of cyanide gas.

9 months ago

Rosetta Saw Collapsing Cliffs and Other Changes on 67P During its Mission

It seems that comet 67P/Churyumov–Gerasimenko is not the stoic, unchanging Solar System traveller that it might seem to be. Scientists…

10 months ago