Mars has two moons, but they're not quite like Earth's moon. That's raised a lot of questions about where they're from, ...

Mars and Earth, two neighboring planets, have captivated the human imagination for centuries. Often hailed as Earth’s “sister planet,” Mars holds a special place in the study of our solar system. But ...

"In spring, this ice begins to warm up and sublimate. The last remnants of this ice are located on the shaded side of the dune tops, and that is where the blocks break off from once the temperature is ...

A new scientific theory on solar tide effects has dramatically improved the accuracy of calculating how much faster clocks ...

Right now there is no conclusive evidence of life on Mars past or present. Nasa’s “leopard spots” are the most promising signs we have, but these are still inconclusive. If life exists on Mars today, ...

Massive volcanic eruptions billions of years ago may have made it snow on Mars, leaving thick buried ice near the planet’s ...

Researchers are uncovering why the immune system falters in space, from microbiome shifts to stress, and how to fight back.

The equatorial regions of Mars are home to unexpectedly enormous layers of ice, and they may have been put there by dramatic ...

As space agencies race to set foot on the Moon, Mars, and elsewhere, a not-so-glamorous problem could be the key to success: ...