galaxy evolution

There Aren’t Many Galaxies Like The Milky Way Nearby. Now We Know Why

The Milky Way is a barred spiral galaxy, maybe even a grand design spiral galaxy. We can't be sure from…

7 days ago

JWST Sees Merging Galaxies Releasing the Light of a Trillion Suns

If we want to know what it'll look like in about 4.5 billion years when our galaxy merges with Andromeda,…

7 months ago

Astronomers Uncover Mass Migration of Stars into Andromeda

Astronomers know that galaxies grow over time through mergers with other galaxies. We can see it happening in our galaxy.…

10 months ago

According to Simulations, the Milky Way is One in a Million

Humanity is in a back-and-forth relationship with nature. First, we thought we were at the center of everything, with the…

10 months ago

The Donut That Used To Be a Star

The death of a star is one of the most dramatic natural events in the Universe. Some stars die in…

11 months ago

The James Webb Links Modern Green Pea Galaxies to Ancient Galaxies in the Cosmic Dawn

When the James Webb Space Telescope lifted off from Earth on Christmas Day in 2021, it carried a lot of…

11 months ago

Astronomers Detect the Faint Glow of Stars in Between Galaxies

Not all stars are members of galaxies. Some stars exist in the space between galaxies, though they didn't form there.…

1 year ago

Webb Sees Organic Molecules in the Hearts of Galaxies, Surprisingly Close to Active Supermassive Black Holes

When the James Webb Space Telescope (JWST) launched, one of its jobs was studying galactic formation and evolution. When we…

1 year 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.

2 years ago

A Detailed Scan of the Milky Way Finds Possible “Fossil” Spiral Arms

New research has revealed previously unknown wispy structures in the Milky Way disk that could offer clues about the history…

2 years ago