It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, ...

The universe is unimaginably vast. Even the nearest stars are incredibly far away. Our galaxy is just one of billions. Traveling vast cosmic distances requires immense energy. Key takeaways sponsored ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Credit: Christine Daniloff / MIT / ESA / Hubble / NASA Many ...

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the history of the universe it appeared. An enormous black hole in the early ...

Depending on how you look at it, the universe might not have an "end," after all.

Sandro Tacchella does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Short answer: We don't really know how the universe was created, though most astrophysicists believe it started with the Big Bang. When you purchase through links on our site, we may earn an affiliate ...

In the beginning, the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.—Douglas Adams, The Hitchhiker's Guide to the Galaxy Humans have many ...