Astronomer Robert Kirshner investigates some of the universe’s biggest questions: What happens when a star explodes? Is the ...

The James Webb Space Telescope is set to take the reins from the Hubble Telescope, pushing the boundaries of space ...

The Hubble Space Telescope has made a groundbreaking discovery that could forever alter the way we understand the cosmos. For ...

Astronomers have caught a rare type of black hole in the act of devouring a star—an event that lit up the universe in X-rays.

The swirling spiral galaxy in this NASA/ESA Hubble Space Telescope image is NGC 3285B, which resides 137 million light-years ...

The Hubble Telescope and Chandra X-ray Observatory saw an enigmatic intermediate-mass black hole lighting up in X-rays, ...

Could our location in space be skewing cosmic measurements? A new study suggests a giant void may explain the Hubble tension.

NASA’s Hubble Space Telescope and NASA’s Chandra X-ray Observatory have teamed up to identify a new possible example of a ...

Cosmology is currently in a crisis known as the Hubble tension: the local universe appears to be expanding about 10% faster ...

Hubble captured this stellar explosion in NGC 3285B, 137 million light-years away, offering new insights into the expanding ...

In the sprawling Hydra constellation, 137 million light-years away, lies NGC 3285B—a dazzling spiral galaxy recently ...

The Hubble Space Telescope has snapped some spooky looking photos of our solar system's newest interstellar invader on the ...