Prom season is one of the most exciting times in a high school student’s life. It’s a time for young ladies and young men to ...

The Andromeda galaxy's satellite galaxies exhibit a highly asymmetrical distribution, with over 80% concentrated on one side, challenging the standard cosmological model.

Using variable stars as distance markers and the giant telescope on Mount Wilson, Edwin Hubble (then a young and little-known astronomer) was able to show that the Andromeda Nebula was over a ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner. Analysis of cosmological simulations published in Nature Astronomy reveal ...