Gaia

Gaia Could Detect Free-Floating Black Holes Passing Near Stars in the Milky Way

The thing with black holes is they're hard to see. Typically we can only detect their presence when we can…

3 months ago

ESA’s Gaia Just Took a Picture of L2 Neighbor JWST

Oh, hello there new neighbor!  In February, the Gaia spacecraft took a picture of its new closest companion in space…

6 months ago

Gaia Finds Ancient Satellite Galaxy Pontus Embedded in Milky Way

A recent study looked at stellar streams hidden in Gaia’s data, to uncover a torturous past.

7 months ago

“Ain’t like Dusting Crops!” How We’ll Actually Navigate Interstellar Space

May the 4th be With You! Blasting out of Mos Eisley Space Port, the Millennium Falcon carries our adventurers off…

1 year ago

New All-Sky Map of the Milky Way’s Galactic Halo

The outer reaches of the Milky Way galaxy are a different place.  Stars are much harder to come by, with…

1 year ago

Our Part of the Galaxy is Packed with Binary Stars

Binary star systems are everywhere. They make up a huge percentage of all known solar systems: from what we can…

2 years ago

The Solar System Might Not Exist if There Wasn’t a Huge Galactic Collision with the Milky Way Billions of Years Ago

The Milky Way has a number of satellite galaxies; nearly 60 of them, depedending on how we define them. One…

2 years ago

Tatooines everywhere? Many of the Exoplanets Already Discovered are in Multi-Star Systems

Right now, we know of about 4,000 confirmed exoplanets, mostly thanks to the Kepler mission. TESS, the Transiting Exoplanet Survey…

3 years ago

This Star has been Kicked Out of the Milky Way. It Knows What It Did.

Every once in a while, the Milky Way ejects a star. The evicted star is typically ejected from the chaotic…

4 years ago

Thanks to Gaia, We Now Know Exactly When We’ll be Colliding with Andromeda

Astronomers have known for some time that the Milky Way and the Andromeda galaxies will collide on some future date.…

4 years ago