Ask Astro

Astronomy for beginners, Observing

Ask Astro: Why are so many stars named Gliese?

Exotic Objects, Galaxies

Ask Astro: Do supermassive black holes create bars in galaxies?

Science, Solar System

Ask Astro: What would Earth look like from Venus?

Deep-Sky Objects, The Sun

Ask Astro: What happened to the Sun’s original star cluster?

Solar System

Ask Astro: Are the outer planets moving away from the Sun?

Stars

Ask Astro: What is the life cycle of a red dwarf star?

Cosmology, Exotic Objects

Ask Astro: How do gravitational waves reveal the distances and masses of colliding objects?

Cosmology, Milky Way

Ask Astro: What is the shape of the Milky Way’s dark matter?

Solar System, The Sun

Ask Astro: What will happen to Earth when the Sun dies?

Solar System, The Moon

Ask Astro: What happened after the giant impact that created the Moon?

Exoplanets

Ask Astro: Have there been any exoplanets discovered in globular star clusters?

Galaxies

Ask Astro: Why do galaxies have spiral arms? Do smaller objects have them too?