That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

What can carbon dioxide in an exoplanet’s atmosphere teach us about its formation and evolution? This is what a recent study published in The Astrophysical Journal hopes to address as an international ...

SPACE (KXAN) — A star flying through the night sky may be the fastest-moving solar system in our galaxy. Possibly a planet a little larger than Neptune orbiting a small star, the system could be ...

The hunt for worlds beyond our solar system has shifted from counting planets to confronting extremes that strain basic ...

The supposed "strange signals" were not mysterious at all, but commonly observed transit signals, according to NASA.

Add Yahoo as a preferred source to see more of our stories on Google. In our solar system, Earth is one of but eight planets – nine, if you really want to count Pluto – and the only one remotely ...

Discovered by volunteer scientists, this alien planet is out of synch with its siblings ...

Realising that our solar system isn’t like most others out there has helped astronomers rewrite the story of how it formed ...

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

Just decades after the first exoplanets were identified, our database of the distant worlds—monitored by the NASA Exoplanet Science Institute—has breached a new threshold. Now, astronomers have ...

As part of the Decadal Survey on Astronomy and Astrophysics (Astro2020), the Panel on Exoplanets, Astrobiology, and the Solar System will identify and articulate the scientific themes that will define ...