Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

Galaxies like the Milky Way boast more than spirals; they also have feathers, where clumps of new stars are born. Astronomers ...

A European space telescope launched to explore the dark universe has released a trove of new data on distant galaxies.

A private lunar lander has captured the first high-definition sunset pictures from the moon. Firefly Aerospace and NASA ...

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.