Mars' north pole contains a large ice cap made up of many layers of frozen water. Like ice cores on Earth, those layers offer a tantalizing record of climate on Mars over the past several million ...

The sudden silence of a veteran Mars spacecraft has turned a routine comet flyby into one of the most intriguing space mysteries of the year. After tracking a rare interstellar object near the Red ...

NASA's Psyche spacecraft will get a boost from Mars on Friday, May 15, passing just 2,800 miles (4,500 kilometers) from the planet's surface at some 12,333 mph (19,848 kph). The spacecraft will ...

NASA is confronting a rare double setback at Mars, with one long-serving orbiter suddenly falling silent and another aging spacecraft expected to reach the end of its life soon. The twin problems ...