Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

Astronomers may have uncovered a hidden population of galaxies that could rewrite what we know about the universe's evolution. These faint, dusty galaxies were discovered using the deepest ...

The most distant and earliest "dead" massive galaxy ever seen shows some galaxies lived fast and died young shortly after the ...

Using the Hubble Space Telescope, astronomers have, for the first time, directly detected the merger of star clusters at the ...

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s matter. The rest is mysterious dark matter. But even that modest slice didn ...

Astronomers have recently uncovered evidence of “hidden galaxies,” a population of faint, dust-shrouded galaxies that could reshape our understanding of the universe. These galaxies, detected through ...

For decades, scientists have been puzzled by the missing mass in the universe. While we know that about 85% of the universe is made up of dark matter, the remaining 15% is made up of normal (baryonic) ...

Explore NASA’s top 10 rare and stunning galaxy images, showcasing vibrant interactions, cosmic collisions, and star-forming wonders that highlight the universe’s dynamic beauty.

NASA's SPHEREx (short for Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) has ...

Light from this new record-breaking galaxy, designated RUBIES-UDS-QG-z7, has been traveling to us for 13 billion years, meaning the JWST saw it as it was just 700 million years after the Big Bang ...

The potential finds could be contributing to some of the faintest light we can see in the universe, say researchers.