Astronomical Distance

Discover some background information on how we'll learn to live and work on the Moon - and beyond!

In 2019, scientists discovered that our galaxy, the Milky Way, is not the shape they thought it was. How do astronomers use astronomical distance to understand the shapes of galaxies?

In planetary science, astronomers have found planets that orbit other stars, just like Earth orbits the Sun. Some of them might even be able to support life.