Stars are the fundamental building blocks of our universe. Most stars host planets, like our sun hosts our solar system, and ...

Our galaxy will make for a particularly splendid sight on the dark nights surrounding the new moon phase on July 24.

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the streak of light produced when a meteoroid enters Earth’s atmosphere. A meteorite is a meteoroid that survives passage ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

Take a journey through the Milky Way galaxy, exploring the wonders of our solar system and the distant stars that illuminate the night sky. The Milky Way is home to over 100 billion stars, each with ...

We are simply not missing an object with the mass of a star within our Solar System. Unlike the Moon, which is tidally locked to Earth, the Sun rotates every 27 days, meaning we see the whole of ...

The sun is a yellow dwarf star in the center of the solar system, and it is the largest, brightest and most massive object in the system. The sun formed around 4.5 billion years ago.

Total solar eclipses are possible on Earth, and occur whenever the Moon aligns with the Earth-Sun ... More plane during a new Moon phase, and is close enough for its shadow to fall on Earth.

Our sun has had close encounters with other stars in the past, and it’s due for a dangerously close one in the not-so-distant future.

Giant planet Jupiter comes into “opposition” this week, kickstarting a summer of scintillating solar system sights. With views of the moon, planets, and two eclipses, here’s all you need to ...