Ask Astro

Cosmology, Science

Ask Astro: If the universe is expanding, why will the Milky Way and Andromeda galaxies collide?

Exoplanets, Stars

Ask Astro: Why are planets and stars round?

Science

Ask Astro: How do telescopes see different parts of the electromagnetic spectrum?

Robotic Spaceflight, Solar System

Ask Astro: Why will DAVINCI drop through Venus’ atmosphere so quickly?

Exotic Objects, Stars

Ask Astro: What will white dwarfs, neutron stars, and brown dwarfs look like at the ends of their lives?

Cosmology, Exotic Objects

Ask Astro: What would happen if two supermassive black holes merged?

Alien Life, Cosmology

Ask Astro: If the universe is 13.8 billion years old, shouldn’t other life have existed before us?

Cosmology

Ask Astro: How far away is the cosmic microwave background?

Solar System, Stars

Ask Astro: Does our Oort Cloud overlap with Alpha Centauri’s?

Solar System

Ask Astro: How is Earth the only known planet with active plate tectonics?

Science, Solar System

Ask Astro: How far could a pro golfer hit a ball on the Moon?

Robotic Spaceflight, Solar System, Space Exploration

Ask Astro: Why will Europa Clipper orbit Jupiter instead of Europa?