One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate.’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
Why do people look into space with telescopes but not binoculars?
Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...
Exploring Andromeda’s past through Nasa’s Hubble Space telescope
Since Hubble’s launch, astronomers have discovered over 1 trillion galaxies, but Andromeda stands out as the closest and most ...
7 astonishing images of Andromeda galaxy shared by NASA
This image of the Andromeda Galaxy, captured by the Herschel Space Observatory, reveals a detailed view of cool lanes of star formation.
Andromeda Galaxy: A barred spiral galaxy, the nearest major galaxy to the Milky Way. It was originally named Andromeda Nebula.
Centaurus A: NGC 5128 is a galaxy in constellation Centaurus, discovered in 1826 by Scottish astronomer James Dunlop. Messier ...