Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's ...

Simulation results show that Mars, despite its similar size to Earth, has a considerable influence on the Milankovitch cycles ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy ...

Even worse, the orbit of Mars is elliptical (think of a slight oval rather than a perfect circle), which means that sometimes ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

NASA's Perseverance rover has uncovered pale rocks rich in kaolinite clay on the floor of Jezero Crater, a mineral that forms ...

Scientists reveal why time moves faster on Mars than on Earth, and how this affects future space communication and navigation ...

There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. Here's what we know.

A new study reveals how specialized microbes might convert Martian regolith into durable, life-supporting structures. Since ...