Author: Staff

Cosmology, Galaxies

Everything around us is spinning: particles, planets, stars, galaxies. Why not the universe?

The Moon

What would happen if the Moon’s farside faced Earth?

Planets

What is the “Roche limit” and how is it defined?

Solar System

How massive must a colliding body be to disturb Earth’s orbit?

Planets, Solar System

Why does Mercury have such a large core?

Alien Life, Planets

What would our solar system look like if aliens observed it with a telescope?

Solar System

Asteroids: What are they made of and where do they come from?