Comets
Latest about Comets

Hubble Telescope gives us our best look yet at the interstellar comet 3I/ATLAS (video, photo)
By Keith Cooper published
New Hubble Telescope imagery of the interstellar interloper comet 3I/ATLAS reveals a dusty coma and the beginning of a tail.

Here we go again! Controversial paper questions whether interstellar visitor 3I/ATLAS is 'possibly hostile' alien tech in disguise
By Harry Baker published
A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar to claims made about 'Oumuamua. But experts have called it "nonsense".

Telescope spies rare interstellar comet 3I/ATLAS zooming through our solar system (photos)
By Samantha Mathewson published
Astronomers unveiled a striking view of the new interstellar visitor 3I/ATLAS on its journey toward the inner solar system.

Why scientists are so excited about the newfound interstellar comet 3I/ATLAS (op-ed)
By Darryl Seligman, Aster G. Taylor published
The scientific and cultural impact of 3I/ATLAS over the coming months and years will serve as an exemplar of what astronomy can learn and why it matters.

See interstellar comet 3I/ATLAS zoom through solar system in new telescope imagery (video)
By Andrew Jones published
The European Southern Observatory has captured the clearest images yet of the interstellar visitor 3I/ATLAS as it moves inward through the solar system.

New interstellar object 3I/ATLAS: Everything we know about the rare cosmic visitor
By Jamie Carter published
How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here are all of your questions answered.

New interstellar comet 3I/ATLAS is hurtling through the solar system — and you can watch it live online today
By Daisy Dobrijevic published
3I/ATLAS is the third-ever interstellar object discovered.

What to expect from the newfound Comet Swan: An observer's guide
By Joe Rao published
Here's an observers' guide to the newly discovered Comet 2025 F2 (SWAN), which is visible in northern skies right now.
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