Iceland's stark, volcanic landscapes offer NASA a crucial terrestrial analogue for Mars exploration. Scientists study its ...

Now's the time to catch Mars in the night sky. Next week, the red planet is making its closest approach to Earth in 15 years. The two planets will be just 35.8 million miles (57.6 million kilometers) ...

This will occur Friday, and everyone in the world can watch, weather permitting. Earth and Mars align with the sun in opposition about once every two years. But truly jaw-dropping midnight views of ...

NASA’s Mars rover finds organic signals in mudstone that resemble microbial activity, sparking new debate over life on the ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

Scientists have been following the comet's journey since its first sighting was reported in July and it will be seen at its closest approach yet - about 167 miles from Earth - this Friday using ground ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy lifting was more challenging than I initially thought." When you purchase ...

CAPE CANAVERAL, Fla. (AP) — Now's the time to catch Mars in the night sky. The red planet is making its closest approach to Earth in 15 years. The two planets will be just 35.8 million miles (57.6 ...