For decades, one of the biggest challenges of sending humans to Mars hasn’t just been getting there, it’s getting back.

A researcher says he found a possible shortcut to Mars that would halve the time it takes to travel to the planet and back to less than a year.

A blue Moon isn't actually blue, but it is fun to experience. (gchapel/iStock/Getty Images Plus) Who needs trainspotting when ...

Earth has a group of cosmic stalkers. Known as "co-orbitals," these small bits of rock have a 1:1 mean motion resonance with ...

Harvard's Avi Loeb suggests interstellar object 3I/ATLAS might have scattered life-building materials, reviving panspermia ...

The International Space Station has been in orbit for more than 25 years. Here's how to regularly spot the outpost from Earth ...

A newly identified near-Earth asteroid known as 2026 JH2 will pass remarkably close to Earth on May 18, 2026. Despite the dramatic proximity, scientists say there is no indication that the space rock ...

Tonight could bring a rare treat for skywatchers across the northern United States: the northern lights, courtesy of a solar ...

Not quite halfway through a six-year sojourn through the Solar System, a NASA spacecraft used a close encounter with Mars ...

These are the parts of the vehicle that separate from the first stage of a rocket and push a satellite or spacecraft into orbit. In the early decades of spaceflight, launch operators routinely left ...

How and when you'll be able to see the International Space Station in Michigan skies.