Comets
Not all the Earth’s Water Came From Comets
We have comets and asteroids to thank for Earth's water, according to the most widely-held theory among scientists. But it's…
Pluto is What You Get When a Billion Comets Smash Together
A new study conducted by researchers from the Southwest Research Institute indicates that Pluto could have formed from a billion…
Astronomy Cast Ep. 492: Comets, Asteroids and KBO’s
Another topic with plenty of updates. Since we started Astronomy Cast we've visited many smaller objects in the Solar System…
70,000 Years Ago a Nearby Star Messed With the Orbits Of Comets and Asteroids in our Solar System
70,000 years ago, Scholz's Star visited our neighbourhood, and changed the trajectories of hundreds of objects in out Solar System.
Scientists Propose An Asteroid Nuke Mission To Save Earth From Potential Destruction
NASA's HAMMER (Hyper-velocity Asteroid Mitigation Mission for Emergency Response) is a plan to protect us from asteroids, either with kinetic…
Rosetta’s 67P Is The Result Of A Collision Of Two Comets
A new study from scientists with France's CNRS explains how comets like 67P/Churyumov-Gerasimenko acquire and retain their multi-lobed shapes.
22 Years Of The Sun From Soho
SOHO is celebrating a huge milestone, and one it was never intended to meet: it has now observed one complete,…
The Solar System Probably has Thousands of Captured Interstellar Asteroids
According to a new study by a team of Harvard researchers, there could be thousands of interstellar asteroids like ‘Oumuamua…
This was the Snowstorm Rosetta Saw When it Got 79 km Away From Comet 67P
The ESA recently released images taken by the Rosetta spacecraft when it witnessed a "snowstorm" while making a flyby of…
Astronomers Find Comets Orbiting a Star 800 Light-Years Away
Thanks to the efforts of a team of professional and amateur astronomers, the first extra-solar comets have been observed.