On what would've been the astronomer's 90th trip around the sun, here's a look at his legacy as a scientist, advocate and ...

The DESI survey reveals that active black holes in small galaxies are common. The findings may help reveal how the two cosmic bodies evolve together.

CERN is set to end its agreement to allow Russian scientists to work there, which will make it harder to accomplish the ...

On Nov. 9, 2024, the world will mark Carl Sagan’s 90th birthday – but sadly without Sagan, who died in 1996 at the age of 62. Most people remember him as the co-creator and host of the 19 ...

Just in time for Halloween, two black holes are in the news.

We live in a golden age for learning about the universe. Our most powerful telescopes have revealed that the cosmos is surprisingly simple on the largest visible scales. Likewise, our most ...

The spiral arms of nearby galaxy Messier 81 is captured by NASA's Spitzer Space Telescope. This galaxy is easily visible ...

The substance, which makes up more than 80 percent of all matter in the universe, shapes and affects the cosmos. But it is ...

Sagan was an unequaled science communicator, astute advocate, prolific writer, and outstanding scientist. What most people ...

Elon Musk wants to nuke Mars. What are the consequences? Without nukes, life on Mars might be like this: You'd live in giant ...

Nothing else seems to exist. Today, while we wait for the networks to start calling states, I’m trying to zoom out, to remind myself that there is a cosmos beyond Pennsylvania, Michigan ...

Carl Sagan had a gift for translating complex scientific ideas into stories that sparked wonder and inspired generations, ...