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Featured in comets

By Apr 14, 2020
Space

A new ’Oumuamua theory could mean many more interstellar visitors are headed our way

‘Oumuamua sure looked like an oddball, but similar planetary tatters could be floating everywhere.
By Jan 3, 2020
Space

Our newest alien comet may have been born out of a dying star’s vomit

Borisov may represent an entirely new type of celestial body.
By Sep 17, 2019
Space

Scientists are scrambling to take more photos of this seemingly alien comet

The object is the second we've observed that has origins in another solar system.
By Sep 11, 2019
Space

Comets could all come from the same place

Data from distant solar systems is helping researchers reconstruct the birth of our own.
By Jul 3, 2019
Space

That giant cigar that zipped through our solar system definitely wasn’t a spaceship

Scientists have more thoughts on ‘Oumuamua.
By Apr 19, 2019
Space

This comet stuffed inside a meteorite is the ultimate cosmic turducken

And it could teach us about the early solar system.
By Dec 15, 2018
Space

This weekend’s comet will be the brightest of the year

46P/Wirtanen will be fuzzy, green, and visible with the naked eye.
By Oct 12, 2018
Space

What’s the difference between a comet and an asteroid?

They both orbit the sun, but they're very different.
By Jul 6, 2018
Space

15 incredible photos taken by the Rosetta spacecraft

You can browse more than 100,000 images from space. Here are our favorite shots.
By Jun 29, 2018
Space

How to tell an asteroid from a comet, even when its from outside our solar system

An ‘Oumuamua by any other name would still be as fascinating.