galaxies
A New Survey of the Sky Contains Over One Billion Galaxies
What contains a petabyte of data on more than a billion galaxies in one of the most extensive sky maps?…
“The Universe Breakers”: Six Galaxies That are Too Big, Too Early
In the first data taken last summer with the Near Infrared Camera (NIRCam) on the new James Webb Space Telescope,…
Galaxies Aren’t Just Stars. They’re Intricate Networks of Gas and Dust
Astronomers have studied the star formation process for decades. As we get more and more capable telescopes, the intricate details…
A Galaxy has Been Found that’s Almost Entirely Dark Matter
Astronomers have discovered a galaxy with very little or no stellar mass. Galaxies like these are called 'dark galaxies.' It…
Astronomers Spot a Rogue Supermassive Black Hole, Hurtling Through Space Leaving Star Formation in its Wake
Supermassive black holes (SMBHs) lurk in the center of large galaxies like ours. From their commanding position in the galaxy's…
Globular Star Clusters are Constantly Kicking Stars out of the Galaxy
All the stars we can see with the naked eye are part of the Milky Way. The gravitational power of…
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.…
Seeing a Mirror Image of the Milky Way From Billions of Years Ago
Ever wonder what our Milky Way Galaxy looked like in its early history? Astronomers using the Webb Telescope (JWST) found…
Face-on View of Galaxy NGC 4303 Reveals its Arms are Filled with Active Star Formation
Galaxies fill a lot of roles in the universe. The most obvious one is star formation factories. Without that activity,…
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…