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

The Webb Space Telescope has captured a plume of gas and dust streaming from a star in the making, with a spiral galaxy as a ...

Dark matter is hypothesized to outweigh "ordinary matter" in the universe by a factor of five. That means all the stuff we ...

Webb captured an Einstein ring formed by a distant galaxy's light bending around a closer one. This rare alignment magnifies hidden galaxies.

The outflow is about 625 light-years from Earth in one of the closest star ... But it was too fuzzy to make out the background galaxy and other details. Webb is the largest and most powerful ...

Due to the close proximity of this Herbig-Haro object to Earth, this new composite ... object to be a distant spiral galaxy, and displaying a sea of distant background galaxies.

Artist's impression of the Gaia telescope mapping stars of the Milky Way galaxy. | Credit: ESA/ATG medialab; background: ...

Ansky, a once-dormant black hole, is now emitting powerful X-ray bursts, giving scientists a rare chance to study its ...

A newborn star, a blast of glowing gas, and a distant spiral galaxy — all caught in one stunning snapshot by the James Webb Space Telescope. This rare cosmic overlap forms a swirling, colorful image ...

Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

According to new simulations, many, even most, planets get ejected from their star early in their history Star Trek ...

Astronomers have reached deeper into the heart of a brilliant cosmic engine than ever before, using NASA’s Hubble Space ...