M31

The Many Colors and Wavelengths of the Andromeda Galaxy

Andromeda is a beautiful galaxy to see with your own eyes, but in this video, ESA’s fleet of space telescopes…

10 years ago

Star Birth and Death in the Andromeda Galaxy

[/caption] To the naked eye, the Andromeda galaxy appears as a smudge of light in the night sky. But to…

11 years ago

Where’s M31’s Thick Disc?

Within our own galaxy, the thick disc is a distinct population of stars that resides above and below the main…

11 years ago

Stolen: Magellanic Clouds – Return to Andromeda

The Magellanic Clouds are an oddity. Their relative velocity is suspiciously close to the escape velocity of the Milky Way…

11 years ago

M31’s Odd Rotation Curve

Early on in astronomical history, galactic rotation curves were expected to be simple; they should operate much like the solar…

11 years ago

Andromeda’s Unstable Black Hole

[/caption] The Andromeda galaxy, the closest spiral galaxy to our own Milky Way, has a supermassive blackhole at the center…

11 years ago

Andromeda’s Double Nucleus – Explained at Last?

In 1993, the Hubble Space Telescope snapped a close-up of the nucleus of the Andromeda galaxy, M31, and found that…

12 years ago

Death in the Sky: M31 Shreds its Satellites

[/caption] An international team of astronomers has identified two new tidal streams in M31, the Andromeda galaxy. They are more-or-less…

12 years ago