Milky Way's comets baffle scientists with a "so unlikely" discovery

For the first time, astronomers identified iron and nickel vapor in the atmospheres of comets in our Solar System and beyond, a result that baffles researchers.

'Bouncing' Comets Could Be Seeding Life Across The Universe

Space rocks could have concentrated necessary prebiotics for life in one place.

Astronomers discover an unexplainable chemical phenomenon at work in comets

A pair of papers published this year calls into question the current understanding of comet formation and the chemical processes governing them.

Scientists home in on mysterious alien comets' interstellar origins

A new study suggests there may be many more of these alien objects orbiting the Sun than we thought.

Mars Gets Bombarded with Organic Material From Comets and Asteroids

Missing Nanodiamonds Undermine Ice Age Comet Impact Theory

It looks like humans are to blame for killing off the wooly mammoths after all.

Build a Rocket to Stop Oncoming Asteroids, Says NASA Scientist

The Moon's Water Actually Came From Asteroids, Not Comets

Asteroids delivered water to the moon during its early evolution, similar to what they did on Earth.

Why Do We Need Astrogeologists? Asteroids and Comets Are Natural Resources Too

Ken Herkenhoff analyzes images of martian soil taken 54.6 million kilometers away.

Astronomers Identify Rare Flyby Comets Just Two Days Apart

These are close encounters of the ice-and-dust kind.

Are Comets Fluffy or Holey? Space Miners of the Future Need to Know!

Let's look inside those icy space balls.

Scientists Claim Famous 1977 'Wow!; Signal May Have Been Comets, Not Aliens

Still, there's plenty we don't know about the transmission.

Super Comets Are Out There, and Could Head Toward Earth

A team of UK researchers think such objects could be a cause of past mass extinctions, so we probably don’t want them around.

Those 'Alien Megastructures' Are Probably Just a Family of Weird Comets

All together just in time for Thanksgiving, no less.

NASA Built a Hedgehog Robot to Explore Comets and Asteroids

Scientists hope these adorable little bots will one day retrieve clues to life itself.

How Comets Could Have Started Life on Earth

Doesn’t take seven days for this sonofabitch

Comets Are Pocked with Sinkholes, Packed with 'Dinosaur Eggs'

The Rosetta orbiter keeps sending wild postcards from its comet mission.