dwarf galaxy

Gaia Spots an Enormous Ghost Galaxy Right Next Door that’s Being Dismantled by the Milky Way

Astronomers combing through data from the ESA's Gaia spacecraft have discovered what they're calling a ghost galaxy. The galaxy, named…

3 years ago

Has a New Dwarf Galaxy Been Found Hiding Behind Andromeda?

Thanks to the work of an amateur astronomer, an international team of scientists recently confirmed the existence of a previously-unknown…

3 years ago

Weekly Space Hangout – June 12, 2015: Astronomy in Chile Educator Ambassadors Program

Host: Fraser Cain (@fcain) Special Guest: This week we welcome Astronomy in Chile Educator Ambassadors Program Participants: Michael Prokosch (Seeing…

6 years ago

Dwarf Galaxies That Dance? Andromeda Observations Reveal A Larger Cosmic Mystery

What is up with these dwarf galaxies? A survey of thousands of galaxies using the Sloan Digital Sky Survey reveals…

7 years ago

Gas Cloud Survives Collision With Milky Way

A high-velocity cloud hurtling toward the Milky Way should have disintegrated long ago when it first collided with and passed…

7 years ago

The Hidden Galaxy in the Zone of Avoidance

[/caption] There are some places astronomers dare not tread. One of the prime places is beyond the disk of our…

10 years ago

The Hercules Satellite – A Galactic Transitional Fossil

[/caption] On Friday, I wrote about the population of the thick disk and how surveys are revealing that this portion…

11 years ago

Milky Way Has a “Squashed Beachball”-Shaped Dark Matter Halo

This illustration shows the visible Milky Way galaxy surrounded by a "squashed beachball"-shaped dark matter halo. Source: UCLA Our galaxy…

12 years ago