Astronomy Staff, Author at Astronomy.com | Page 15 of 276

Exoplanets, Planets

How do planets get their atmospheres?

What will happen to the planets when the Sun becomes a red giant?

Why do colliding spiral galaxies form elliptical galaxies?

Ask Astro: How do astronomers know if an object came from another star?

Exotic Objects, Stars

Why does supernova 1987A look like a ring?

Astronomy for beginners, Observing

Observing The Night Sky for Beginners

Exoplanets, Planets, Solar System

What does it mean for Venus and Mercury to be in retrograde?

Human Spaceflight, Space Exploration

SpaceX: Crew Dragon is returning to Earth – here’s when to hold your breath

In what part of the electromagnetic spectrum does the Sun emit energy?

Exotic Objects, Stars

When Betelgeuse goes supernova, can we safely observe it?

Milky Way, The Sun

In which direction does the Sun move through the Milky Way?

How did stony meteorites form from the dust cloud of the early solar system?