We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

Beyond explaining these observations, the model also allows for predictive analysis of planetary formation and even hints at the potential for other ... planets form -- not just in our galaxy ...

"Beyond the Milky Way lie billions of other galaxies, drifting a few million ... dust that supplies the raw material for new stars and planets. New ways of finding distances to the nebulae were ...

Whether a galactic environment has the right conditions for habitable planets to form could depend on how the black hole in ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

The universe tells us its story mainly through light and other wavelengths of electromagnetic radiation. We learn about the planets, stars, and galaxies by their light—visible light, and also ...