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

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

Mars keeps refusing to behave like the dead, simple world many scientists once imagined. Each new rover trench, fractured ...

Scientists find that time on Mars runs 477 microseconds faster than on Earth, a discovery that could enhance deep-space communication and future exploration ...

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

The first global atlas of Martian watersheds reveals 16 huge ancient river systems that once shaped Mars and may hold clues ...

Measuring the time discrepancy between Earth and Mars will help make future navigation and communication systems on the Red ...

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

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

Clocks tick faster on Mars than they do on Earth, in part because Mars experiences less gravitational pull from the Sun. Now scientists have calculated just how much faster -- 477 microseconds, on ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind recorded by NASA's Perseverance rover.

Venus appears in the southwestern sky at dusk, while the pair of Jupiter and Saturn rule the roost at nightfall in the southeast. Mercury is currently invisible in the sun's glare but will return for ...