Summary: Cosmic voids may seem like the emptiest places imaginable, stripped of matter and radiation. Yet modern physics reveals that even these vast expanses are far from nothing. Cosmic voids are ...

The galaxy NGC 941 was imaged by the Subaru Telescope at the summit of Maunakea, Hawai'i.

Ripples in the fabric of space-time called gravitational waves may be the key to solving the Hubble tension — one of the biggest nagging problems in physics.

This image, taken with ESO's Very Large Telescope (VLT), seems to have captured a cosmic hawk as it spans its wings. While ...

An extraordinarily rare, gravitationally lensed supernova may offer a powerful new way to measure the universe’s expansion rate.

Astronomers with the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) have used data from the project to make the ...

Scientists mapped 650 light-years of the Milky Way’s core to examine star formation in one of the galaxy’s most extreme environments.

A rare total lunar eclipse will turn the Moon a deep coppery red tonight, offering skywatchers a safe and spectacular celestial show.