“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

Hidden ice? NASA’s Lunar Trailblazer will reveal where the Moon’s water really is 'Earth will flip': A 42,000-year-old tree ...

The heat might be coming from a hidden ocean or radioactive elements beneath Pluto's surface. This would be a real turn-up for the books as, until now, astronomers thought Pluto was too old to ...