The comet was identified as interstellar due to its highly eccentric hyperbolic orbit, which is unlike the elliptical orbits of native Solar System objects.

In fact, July 9 could end up being the shortest day ever recorded by the International Earth Rotation and Reference Systems ...

Ever been late because you misread a clock? Sometimes, the "clocks" geologists use to date events can also be misread.

The discovery of more than 15,000 kilometers of ancient riverbeds on Mars suggests that the Red Planet may once have been ...

White House takes aim at several projects failing to meet cost and schedule estimates—and several more that aren’t.

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

The full buck moon will reach its peak illumination on Thursday, July 10. It’s just one of this month’s celestial highlights.

NASA’s Mars Reconnaissance Orbiter has learned to pull off daring 120-degree rolls that give its SHARAD radar ...

Mars, often imagined as a lifeless desert battered by radiation and cold, holds within its crust the haunting memory of a ...

Researchers show algae can grow in Mars-like atmospheric pressure conditions. If humans are ever to establish permanent ...