Exoplanets, Planets Ask Astro: How do scientists determine the chemical compositions of the planets and stars?
The Sun Whenever I read articles about solar storms, they talk about billions of tons of charged particles that are ejected. How are these amounts calculated?
Exoplanets, Planets, Solar System If one were to stand on the Moon when Earth is eclipsing the Sun and look up, what would one see?
Science, Solar System How do astronomers determine the Sun’s sibling stars and where the Sun originated?
