In the South China Sea, near the Paracel Islands, the aqua-colored waters of an expansive shallow reef platform suddenly ...

Physicists have started to treat a once-fringe idea with surprising seriousness: that our entire observable universe might be ...

It’s the greatest cosmic murder mystery of the year: How did a black hole destroy a star—and what kind of black hole is the culprit? Normally, so-called “gamma ray bursts,” sudden flashes of extremely ...

Black holes are among the most fascinating and enigmatic objects in the universe. Born from collapsed stars and governed by ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...

Three merging galaxies host three active black holes, offering rare insight into galaxy and black hole growth.

APM 08279-5255 is a massive black hole (quasar) that contains about 140 trillion times the amount in all of Earth’s oceans ...

Astronomers have decoded the hidden past of a distant red giant star by listening to tiny vibrations in its light, revealing ...

Astronomers have identified a massive cloud of water vapor surrounding a distant quasar, marking the largest single reservoir ...

What's the size of the Milky Way galaxy? Learn how, depending on your definition, the size can change.

Astronomers have confirmed the first known triple system in which all three galaxies host actively feeding, radio-bright ...

2025 was another big year for black holes, and here's our pick of the top black hole stories from the last twelve months.