On human timescales, the universe may as well be eternal. It’ll be here long after our species and our planet are gone, but ...

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

When discussing the scale of the universe, we’re immediately faced with an intriguing question: are we tiny beings, or is the ...

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

If recent discoveries that dark energy is evolving hold any water, our Universe will collapse under its own gravity on a ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

Pulsars could be helping scientists distinguish between gravitational waves caused by supermassive black hole collisions and ...

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

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 ...

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 ...