galaxies

Astronomers Pin Down the Age of the Most Distant Galaxy: Seen 367 Million Years After the Big Bang

Staring off into the ancient past with a $10 billion space telescope, hoping to find extraordinarily faint signals from the…

4 days 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…

4 days 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…

2 weeks ago

You’re Looking at a Map of the Milky Way’s Magnetic Field

Using telescopes that study the sky in the microwave part of the electromagnetic spectrum, astronomers have successfully mapped the structure…

2 weeks ago

Using the Shadows of Clusters to Measure the Universe

Astronomers have begun using a sophisticated suite of simulations, an advanced machine learning model of the formation of galaxy clusters,…

2 weeks ago

Astronomers Begin to Understand Strange “Backsplash” Galaxies

Clusters of galaxies do not appear in an instant. Instead they gradually form through the accumulation of many galaxies. But…

2 weeks 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…

3 weeks ago

Newly Found Stars are Technically in the Milky Way, but They’re Halfway to Andromeda

We all know our galaxy, the Milky Way, is big. Really big. But, exactly how far out does it extend?…

3 weeks ago

Webb’s New Image Reveals a Galaxy Awash in Star Formation

When a spiral galaxy presents itself just right, observations reveal more detail. That's the case with NGC 7469, a spiral…

1 month ago

Webb Stares Deeply Into the Universe, Showing How Galaxies Assemble

The James Webb Space Telescope is delivering a deluge of images and data to eager scientists and other hungry-minded people.…

1 month ago