#galaxy-clusters tag

What the Universe looks like: from nearby to far away

Looking skyward fills us with wonder. Off-world, the Sun, planets, stars, and galaxies all await. Our Solar System encompasses our own cosmic backyard. Farther away, stars and star clusters abound within the Milky Way. Hundreds of billions of stars exist just within our home galaxy. Inside our Local Group, only Andromeda surpasses us in mass, size, and stars. More than 5 million light-years away, galaxies abound in groups and clusters.

Science

fromFuturism

3 weeks ago

Scientists Discover Impossible Object in Deep Space

A galaxy cluster 1.4 billion years after the Big Bang exhibits gas temperatures at least five times higher than cosmological models predict.

Science

fromwww.scientificamerican.com

3 weeks ago

Stunningly Hot Galaxy Cluster Puts New Spin on How These Cosmic Behemoths Evolved

Galaxy cluster SPT2349-56 contained gas at least five times hotter than predicted when the universe was 1.4 billion years old.

Science

fromThe Atlantic

1 month ago

Day 13 of the 2025 Space Telescope Advent Calendar: A Sea of Galaxies

The James Webb Space Telescope imaged hundreds of galaxies in galaxy cluster MACS J1149.5+2223 across varied distances, sizes, shapes, and colors.

Science

fromFuturism

3 months ago

Astronomers Astonished By Twin Cosmic Rings That Dwarf Entire Galaxies

A double-ringed Odd Radio Circle of magnetized plasma, hundreds of thousands of light years across, was detected 7.5 billion years away; its origin is unexplained.

Science

fromwww.scientificamerican.com

4 months ago

Want to See Dark Matter? Start with the Bullet Cluster

The Bullet Cluster reveals a separation between galaxies, hot intracluster gas, and dark matter during a massive collision, providing strong observational evidence about dark matter behavior.

OMG science

fromBig Think

7 months ago