From our small blue planet to the farthest reaches of the observable cosmos, this breathtaking journey explores the true ...

The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from dark-energy observatories. After expanding to its peak size about 11 billion ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

Scientists have found a remarkably small yet bright object from the early universe that doesn’t make sense in our existing models of how stars and galaxies formed, even our own Milky Way. That means ...

The universe may not have begun with the Big Bang as is generally thought but from the collapse of a massive black hole, a new theory suggests. Current observations of our universe appear to support ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Our vast universe might not be infinitely expanding after all. Some ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Why didn’t the universe annihilate itself moments ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

If recent discoveries that dark energy is evolving hold any water, our Universe will collapse under its own gravity on a finite timeline, new calculations suggest. Based on several recent dark energy ...

“You can journey to the ends of the earth in search of success,” 19th-century Baptist preacher Russell Conwell is said to have proclaimed, “but if you’re lucky, you will discover happiness in your own ...

Physicist Paul Davies shows how recent scientific discoveries point to a perplexing fact: many basic features of the physical universe--from the speed of light to the most humble carbon atom--seem ...