Ask Astro | Page 15 of 20 | Astronomy.com

Ask Astro web extra: How does Earth compare to the rest of the planets in our solar system in radio wave emission?

Ask Astro web extra: How far is the farthest satellite from Earth at this time?

Ask Astro web extra: How many stars are there within 33 light-years of our solar system?

Ask Astro web extra: Does a star stay at the same spot in the sky everyday? If not, is it considered a star, or some other unidentified object?

Ask Astro web extra: Has anyone pointed a telescope toward Alpha Centauri to see if there are planets only 4 light-years away?

Ask Astro web extra: Do Kepler’s laws apply to all extrasolar planet systems or just our solar system?

Ask Astro web extra: Will all white dwarfs, regardless of the class of star that produced them, eventually become black dwarfs?

Ask Astro web extra: What is the temperature of Pluto?

Artist's impression of a black hole

What happens to dark matter in the gravity field of a black hole?

Ask Astro web extra: What was the size of the universe immediately before and after inflation?

Ask Astro web extra: What forces maintain Earth’s axial spin or that of any other celestial body?

Ask Astro web extra: Have we found multiple planet systems around other stars?