Comets
Everyone Took Pictures of Comet NEOWISE, Including Hubble
This summer we were (finally) treated to a spectacular, naked-eye comet, C/2020 F3 NEOWISE. And while seeing it with our…
Organic Matter Could Have Delivered Earth’s Water
The origin of Earth's water is a big piece of the puzzle in Earth's history. Did it come from comets…
Parker Solar Probe Gives a Unique Perspective on Comet NEOWISE
Comet watchers have enjoying the newly-discovered NEOWISE comet since it was first spotted in March 2020. Now that it's visible…
Finally! We’ve got a comet that’s visible to the unaided eye. Comet C/2020 F3 NEOWISE
Look up! A rare naked-eye comet, C/2020 F3 (NEOWISE), is now visible to the unaided eye. But act fast -…
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…
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…
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…
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…
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…
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…