"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy ...

A new theoretical paper has tackled the phenomenon of quantum decoherence, the process by which objects slip out of the quantum world and start behaving classically. The paper approaches this in a new ...

Journal for General Philosophy of Science / Zeitschrift für allgemeine Wissenschaftstheorie, Vol. 50, No. 1 (March 2019), pp. 13-27 (15 pages) In a way similar to classical mechanics where we have the ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

Another day, another scrub for the world’s first 3D-printed rocket. On Saturday, Relativity Space’s Terran 1 rocket failed to get off the ground after two launch attempts. It was a day of false starts ...

Relativity Space said Wednesday that it had received its launch license from U.S. regulators, clearing the way for its first-ever orbital flight attempt on March 8. Relativity will be attempting to ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Albert Einstein's theory of general relativity has held up pretty well after a century out in the ...

As Einstein predicted, a slow drive or a step up a ladder is enough to warp time. You have full access to this article via your institution. Albert Einstein's theories of relativity, which predict ...