Ask Astro

Exoplanets, Planets, Solar System

Ask Astro: How hot would Venus be at different distances from the Sun?

Exotic Objects

Ask Astro: How do stars make elements heavier than iron?

The Moon

Ask Astro: Why does the Moon disappear during New Moon?

Cosmology, Galaxies

Ask Astro: If dark matter is invisible, then how do we detect it?

Galaxies, Milky Way

Ask Astro: How many satellite galaxies does the Milky Way have?

Exoplanets, Planets

Ask Astro: Can planets be pear-shaped, or are they all spheres?

Exoplanets, Planets, Solar System, Stars

Ask Astro: Could Jupiter ever become a star?

Solar System

Ask Astro: How do astronomers know if an object came from another star?

Milky Way, The Sun

In which direction does the Sun move through the Milky Way?

Solar System

How did stony meteorites form from the dust cloud of the early solar system?

Stars

When Sirius A expands into a red giant, could white dwarf Sirius B go supernova?

Exoplanets, Planets, Solar System

Is it possible to see meteors on Mars?