Scientists argue that Deimos’ tilted orbit owes to a Martian ring that disintegrated billions of years ago.
Bacteria and yeast can survive under hydrogen in the lab, which may mean more planets could support extraterrestrial life.
Puzzling planets with the apparent density of cotton candy probably have rings, according to a new study.
The space agency’s InSight lander has detected hundreds of marsquakes since arriving on the red planet about 15 months ago.
The SETI Institute leads the hunt for extraterrestrials, which has entered a new phase with myriad planets to focus on.
Researchers find plausible, alien-free explanation for observations of star KIC 8462852.