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 ...

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 ...

For the first time, water frost has been detected on the colossal volcanoes on Mars, which are the largest mountains in the solar system. The international team led by the University of Bern used high ...

An artist's conception showing a planetary smash-up between a Moon-sized object and a Mercury-sized object. (NASA/JPL-Caltech ...

Mars looks blue and bruised in surreal new images from Psyche spacecraft — Space photo of the week A giant 'shadow' has been creeping across Mars for 50 years — and scientists aren't sure why ...

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 ...

Unlike rocky planets such as Mars and Earth, angrites do not have a lot of silicon dioxide. Because of this, astronomers have long assumed that angrites always originated in asteroids no larger than ...

Mars experienced a sudden rupture in the cosmic order about one year ago. It was almost like the red planet had briefly been transported to another solar system. Normally in our solar system, the sun ...