New observations show a star that blew up in two separate bursts, confirming a long-suspected cosmic phenomenon called a ...

The earliest light in the universe has been traveling across space since just after the Big Bang. Known as the cosmic ...

Scientists say that the construction of a vast new radio telescope array in the Utah desert — known as the Deep Synoptic ...

In the Big Bang Theory, the cosmic microwave background — microwave-range radiation that floats through the entire universe ...

You could swim through the deepest voids and encounter a single hydrogen atom in an entire football field's worth of space.

New observations support the idea that hot, diffuse threads of gas called cosmic filaments connect clusters of galaxies ...

MUSE allows astronomers to map the distribution of different chemical elements, displayed here in different colours. Calcium ...

For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

Webb’s new images of the Bullet Cluster reveal the most detailed dark matter map yet, shedding light on cosmic collisions and ...

The cosmic microwave background is the oldest light in the Universe, emitted about 380,000 years after the Big Bang. It corresponds to the moment when the Universe became cool enough for electrons and ...

Seen as a long strand with smaller threads branching, the Quipu superstructure contains 68 galaxy clusters spanning 1.4 ...

For the first time, astronomers have used a ground-based telescope to observe polarized microwave light from the universe's earliest epoch. Their observations could give them a better understanding of ...