Imagine a scenario where the Moon, our constant companion in the night sky, begins a deadly trajectory toward Earth. The consequences would be catastrophic, reshaping every aspect of life on our ...

Timing is everything these days. Our communications and GPS networks all depend on keeping careful track of the precise timing of signals—including accounting for the effects of relativity. The deeper ...

The European Space Agency’s Juice mission made two historic firsts this week on its long journey to study the potential habitability of Jupiter’s icy moons. The Juice, or Jupiter Icy Moons Explorer, ...