As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s ...

Is time something that flows — or just an illusion? Exploring space-time as either a fixed “block universe” or a dynamic fabric reveals deeper mysteries about existence, change, and the very nature of ...

For the past decade, gravitational wave astronomy has opened our eyes to amazing cosmic phenomena like the collisions of black holes and neutron stars thanks to LIGO, the Laser Interferometer ...

The universe is expanding, and while that fact is fascinating, it also creates a question that trips people up: if […] ...

A new theory of the fabric of the universe has proposed that time has three dimensions. Moreover, this model leads to the conclusion that these three time dimensions are the true underlying feature of ...

A new emulator is tackling the near-impossible task of mapping the universe's large-scale structure without sacrificing ...

Deep in the first moments of the Big Bang, the entire cosmos shook and rumbled. Those quakes still reverberate to the present day. It will take the most sensitive instruments ever imagined to reveal ...

You’d think Brian Greene already had plenty to keep him busy, what with his day job as a professor of theoretical physics at Columbia University and his hobby of writing bestselling science books on ...

One of the big challenges in communicating about space and space-time is that the universe is so large the scales are very difficult to imagine. Even just trying to get a sense of our solar system can ...

NASA's advanced space observatory known as SPHEREx is on its cosmic journey to solve some of the universe's biggest mysteries. The space telescope, which NASA has spent years developing, launched ...

About a century ago, scientists were struggling to reconcile what seemed a contradiction in Albert Einstein’s theory of general relativity. Published in 1915, and already widely accepted worldwide by ...