milky way

The Spherical Structure at the Core of the Milky Way Formed in a Single Burst of Star Formation

Like other spiral galaxies, the Milky Way has a bulging sphere of stars in its center. It's called "The Bulge,"…

3 weeks ago

Astronomers Map Out the Raw Material for New Star Formation in the Milky Way

A team of researchers has discovered a complex network of filamentary structures in the Milky Way. The structures are made…

4 weeks ago

Astronomers Find the Hollowed-Out Shell of a Dwarf Galaxy that Collided With the Milky Way Billions of Years Ago

In 2005 astronomers found a dense grouping of stars in the Virgo constellation. It looked like a star cluster, except…

1 month ago

7% of the Stars in the Milky Way’s Center Came From a Single Globular Cluster That Got Too Close and Was Broken Up

The heart of the Milky Way can be a mysterious place. A gigantic black hole resides there, and it's surrounded…

2 months ago

A Rogue Earth-Mass Planet Has Been Discovered Freely Floating in the Milky Way Without a Star

If a solar system is a family, then some planets leave home early. Whether they want to or not. Once…

2 months ago

Gaia has Already Given Us 5 New Insights Into the Milky Way

The European Space Agency launched the Gaia mission in 2013. The mission's overall goal was to discover the history of…

2 months ago

The Milky Way is Already Starting to Digest the Magellanic Clouds, Starting With Their Protective Halos of Hot Gas

Massive galaxies like our Milky Way gain mass by absorbing smaller galaxies. The Large Magellanic Cloud and the Small Magellanic…

2 months ago

A Star had a Partial Supernova and Kicked Itself Into a High-Speed Journey Across the Milky Way

Supernovae are some of the most powerful events in the Universe. They're extremely energetic, luminous explosions that can light up…

4 months ago

A Stellar Stream of Stars, Stolen from Another Galaxy

Modern professional astronomers aren't much like astronomers of old. They don't spend every suitable evening with their eyes glued to…

4 months ago

Astronomers Estimate There Are 6 Billion Earth-Like Planets in the Milky Way

Six billion Earth-like planets in the Milky Way? If true, that's astounding. But the number needs some context. The Milky…

5 months ago