With an orbit of 647 days, HD 20794 d is similar to Mars in our solar system. However, its orbit around the star is highly elliptical. This feature causes extreme temperature variations on the planet, ...

NASA's newest space telescope rocketed into orbit Tuesday to map the entire sky like never before—a sweeping look at hundreds ...

Win four games in four days or the season is over. To make things even more difficult, the team is down to just six rotation ...

The National Aeronautics and Space Administration (NASA) launched the SPHEREx and the PUNCH space missions late on Tuesday ...