In this curious film, a pair of friends venture out into the desert to build an accurate to scale model of our solar system.

Over 4.6 billion years ago, the early Earth emerged from a swirling disk of gas and dust encircling the young sun. This primordial material collided and coalesced, forming larger bodies through the ...

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, ...

The Moon is rusting — and it’s Earth’s fault. Scientists have found that oxygen particles blown from Earth to the Moon can ...