Few ideas in modern science have reshaped our understanding of reality more profoundly than space-time: the interwoven fabric of space and time at the heart of Albert Einstein’s theory of relativity.

Wormholes are often imagined as tunnels through space or time — shortcuts across the universe. But this image rests on a misunderstanding of work by physicists Albert Einstein and Nathan Rosen. In ...

What if our biggest idea about reality is built on a hidden misunderstanding? A new philosophical look at space-time challenges the popular view that the past, present, and future all exist together ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...

The Lumina Project spans 2 billion years and will allow scientists to test theories and predictions about the origins of the ...

NASA is about to launch a space observatory that could help settle some of the biggest mysteries in modern astronomy. The Nancy Grace Roman Space Telescope will study how the universe began, what it ...

DESI and DES studied dark energy. Together, what can they tell us? Last year, DESI made headlines when its map of the Universe suggested dark energy, the force driving cosmic expansion, might not be ...

A robot solves a giant Rubik’s Cube with its feet, NASA sends mini-organs to space, and a tiny quantum universe helps ...

Nov. 4, 2026 NASA is exploring a daring plan to save the legendary Hubble Space Telescope from its eventual fiery plunge into Earth's atmosphere. After more than 35 years of groundbreaking discoveries ...