What is the meaning of life? Even the best of us couldn't hope to answer that question in a Universe Today article. But there ...

A student in my freshman seminar class at Harvard University innocently asked me this week whether gravitational time dilation, as predicted by Einstein’s theory of general relativity, is relevant to ...

Clocking dark matter: optical clocks join the hunt for dark matter. (Courtesy: N Hanacek/NIST) An optical clock has been used to set new constraints on a proposed theory of dark matter. Researchers ...

A new report has shed some new light on the hypersonic missile launched by China in July—claiming that it demonstrated a previously unheard-of technological advance. But it’s also raised some ...

At a fundamental level, what is our Universe made of? This question has driven physics forward for centuries. Even with all the advances we've made, we still don't know it all. While the Large Hadron ...