comets, research, solar system, source of comets

Here and Gone: Outbound Comets Are Likely of Alien Origin

Astronomers at the National Astronomical Observatory of Japan (NAOJ) have analyzed the paths of two outbound comets heading out of the Solar System forever and determined that they also most likely originated from outside of the Solar System. These results improve our understanding of the outer Solar System and beyond. Not all comets follow closed ...

Troy Oakes

A comet traveling through space.

All Comets in Our Solar System May Have Come From the Same Place

All comets might share their place of birth, new research says. For the first time ever, astronomer Christian Eistrup applied chemical models to 14 well-known comets, surprisingly finding a clear pattern. His publication has been accepted in the journal Astronomy & Astrophysics. Balls of ice or more? Comets travel through our solar system and are ...

Troy Oakes

Comet 67P/Churyumov-Gerasimenko.