Ask Astro

Robotic Spaceflight, Solar System, Space Exploration

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

Exotic Objects, Stars

Ask Astro: What are the differences between supernovae, kilonovae, and hypernovae?

Human Spaceflight, Space Exploration

Ask Astro: Could the International Space Station park in one spot over Earth?

Solar System

Ask Astro: What are the largest Near-Earth Objects?

The Moon

Ask Astro: How would a volcanic eruption affect a lunar eclipse?

Exoplanets, Milky Way, Stars

Ask Astro: Is Sirius part of the Milky Way? Does it have any planets?

Solar System

Ask Astro: What is the Caloris Basin on Mercury — and how did it form?

Robotic Spaceflight

Ask Astro: What fuel do spacecraft use to explore the distant solar system?

Science

Ask Astro: The universe is full of dust — what’s it made of?

Exotic Objects

Ask Astro: If time stops for an object falling into a black hole, how can LIGO see black holes colliding?

Solar System

Ask Astro: Are meteorites radioactive?

Cosmology, Galaxies

Ask Astro: Does dark energy create the voids between galaxy clusters?