The first mission to a metallic asteroid, scheduled for launch on 5 October, could provide clues to the formation of Earth and the solar system’s other inner planets.
Our solar system’s ocean worlds offer scientists intriguing instances of exotic phenomena and fresh prospects in the elusive search for planetary habitability.
OSIRIS-REx will help reveal Bennu’s detailed carbon chemistry and history of space weathering and unlock a key piece of the solar system’s early history.
The granite couldn’t have formed the same way that it does on Earth—with liquid water and plate tectonics. So how did it get there?
Machine learning can reveal the stories written in the marks on the Moon.
Scientists are coming up with ingenious ways to compare terrestrial sand dunes, dust storms, and rain with their counterparts on Mars and Titan.
The rings are fairly shiny despite being bombarded by dust, indicating that they haven’t been around for very long.
Narrowing down the search is essential for gaining time on a high-powered telescope that could spot the hypothesized planet directly.
A new study has ruled out large, once-molten meteorites called achondrites as sources of Earth’s water.
The dwarf planet’s ring makes astronomers question whether a long-held theory about ring and moon formation needs tweaking.