general relativity

Stephen Hawking

Stephen Hawking’s Last Paper Is Now Online

The black hole information paradox fascinated Hawking for decades, and is the topic of his final research study.
Becky Ferreira
10.12.18
atomic clocks

Physicists Used Atomic Clocks to Test Einstein’s Theory of Relativity in a 14-Year Experiment

A foundational thought experiment in Einstein’s theory of general relativity just got its most precise confirmation ever by turning the entire Earth into a laboratory.
Daniel Oberhaus
6.4.18
humans of the year

One of the Greatest Cosmic Mysteries Was Solved By David Shoemaker’s Device

LIGO's detection of gravitational waves was an achievement comparable to Galileo’s telescope. Meet the man whose team built the detector.
Grennan Milliken
2.22.17
Space

Scientists Think the Speed of Light Has Slowed, and They're Trying to Prove It

A controversial theory that would overturn Einstein’s theory of general relativity could soon be tested.
Daniel Oberhaus
12.6.16
Art

Watch The Mechanics Behind Time Travel

The effects of time dilation on various spacecraft is visualized in Chomko & Rosier's 'Relative Clocks.'
Kevin Holmes
11.11.16
videos

Philosopher Jürgen Renn Explains Einstein's Theory of General Relativity

Where does revolutionary knowledge come from?
Michael Byrne
11.30.15
history

100 Years After Einstein's Relativity, We're Still Just Figuring Gravity Out

The most apparent of forces is still far and away the most mysterious of them.
Michael Byrne
11.29.15
nasa

Lost Satellites Will Help Test Einstein's Theory of General Relativity

Two of the ESA's Galileo positioning satellites wound up in the wrong orbit, but it's not all for naught.
Michael Byrne
11.19.15