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

Solar wind washes over the planets, but it briefly disappeared at Mars due to an event on the sun. Mars's atmosphere temporarily expanded by thousands of kilometers. NASA's MAVEN orbiter observed the ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

This summer, scientists spotted an incredibly rare visitor to Earth’s solar system—a comet, now known as 3I/ATLAS, that entered our solar system from the galaxy beyond and is zipping past the sun at a ...

While we earthlings prepare for a rare total solar eclipse that will pass over North America, Mars had one of its own earlier this year. A timelapse of photos taken by NASA's Perseverance rover Feb. 8 ...

NASA’s Perseverance rover has made a significant discovery on Mars: a meteorite, which could provide vital clues about the ...

Take a trip through the maze-like valleys and canyons of a unique place in the solar system: Mars' 'labyrinth of night.' When you purchase through links on our site, we may earn an affiliate ...

Pioneer Astronautics has conducted a successful dynamic test of its Mars solar balloon inflation system. The experiment, performed at an altitude of 116,000 ft over Kuner Colorado on September 26, was ...

In a groundbreaking development, Ohio State University has unveiled a new concept for nuclear thermal propulsion that could significantly cut down travel time to Mars. Building on past space ...

The spacecraft landed in 2019 to study the deep interior of the planet. NASA is being forced to end its Mars lander mission early because of dust. Officials announced Tuesday the InSight spacecraft is ...

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars. When you purchase through links on our site, we may earn an affiliate commission.