Recent observations suggest that 'runaway' black holes are tumbling through the cosmos. Building on decades of theory, the discovery adds a remarkable new chapter to the story of the universe.

Since the 1990s, astronomers have found a handful of other dwarf planets in the belt, such as Eris and Sedna, along with ...

An annular solar eclipse, also known as a "ring of fire" eclipse, occurs on Feb. 17, but will only be viewable on one continent south of the equator.

NASA is quietly entertaining one of the most audacious telescope concepts ever proposed: using the Sun itself as a giant lens ...

In an ambitious new proposal, scientists suggest that humanity could soon turn the Sun into a colossal telescope, allowing us ...

The first solar eclipse of the year is almost here, but very few people will see it. Tuesday’s annular solar eclipse, known ...

A “disappearing” star in the Andromeda galaxy is the closest and best candidate for a newborn black hole that astronomers have ever seen ...

Richard Carrington’s name has long been connected with the most intense solar storm ever recorded, but his face was unknown until a lost portrait surfaced.

The Sun would be a far more powerful telescope than any humanity could create in the near future. But to use it, we need to get to 650 AU.

The tiny town of Bruneau offers glimpses into rural Idaho life that feels increasingly precious in our rapidly developing ...

"I really wanna see the mass driver on the moon that is shooting AI satellites into deep space. Just going like 'shoom, shoom,' just one after the other." ...

Maryland Gov. Wes Moore delivers his fourth State of the State at noon on Wednesday, balancing the state’s budget challenges with the launch of his reelection campaign. Here’s the text of the speech ...