The Andromeda Galaxy, located approximately 2.5 million light-years from Earth, is visible to the naked eye under dark skies ...

Background of why I decided to compareI previously wrote a post titled "Comparing SV240 and SV260 Light Pollution Filters" ...

A new ultra-faint dwarf galaxy has been discovered in the vicinity of Andromeda (M31), the Milky Way's large neighboring galaxy. The new study, published in Astronomy & Astrophysics suggests that the ...

Each Monday, I pick North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in ...

The observations that American astronomer Edwin Hubble made on the night of October 5-6, 1923 and one that he had made the ...

Astronomers know that mergers play a huge role in galaxy growth. Right now, the Milky Way is slowly consuming the Large and Small Magellanic Clouds. The evidence is a stream of gas called the ...

What’s the farthest object you can see with only your eyes? Unless you live under extremely dark skies unspoiled by light pollution, the answer is the Andromeda Galaxy (M31), located some 2.5 million ...

An international team of astronomers has used the UK's 2.5-m Isaac Newton Telescope on La Palma in the Canary Islands to map the Andromeda Galaxy (otherwise known as M31) and a large area of sky all ...