According to Einstein's theory of relativity and a new NIST study, time on Mars passes faster than on Earth. Discover the ...

China has quietly solved a problem that only becomes obvious once you try to live and work off-world: clocks on the moon do ...

Modern physics has a problem. Its two main pillars are quantum theory and Einstein’s theory of general relativity, yet these ...

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

In an age marked by skepticism, apathy, and radical individualism, how can discipleship form whole, mature believers ...

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

Last year delivered doses of drama and excitement in the space business, with a record number of launches, breathtaking ...

Why the universe is expanding faster and faster remains one of the biggest open questions in physics. Current theories cannot ...

Albert Einstein was intrigued by a simple puzzle: an old car must travel 2 miles at an average of 30 mph. The twist? Its structure makes the solution impossible. Can you solve it?

From franchise-enders like Allegiant to detestable rom-coms like Mother's Day, these terrible movies all celebrate their ...

Which US rocket companies achieved the most during 2025? Once again, Ars Technica is here to provide some answers in the form ...