In a new study, a research team used advanced geochemical dating and analysis techniques to reveal that some asteroids and meteorites, such as Ryugu and Ivuna, originate from celestial bodies that formed less than 2 million years after the beginning of the solar system. This coincides with a period when the solar system was forming its first generation of planetesimals, the building blocks of planets.
New results from the Hayabusa-2 space probe show that asteroids formed at the very beginnings of our Solar System retained substantial amounts of water for hundreds of millions of years, potentially delivering water to Earth and other planets for much longer than previously thought.
New results from China’s Chang’e 5 lunar samples returned to Earth provide evidence for active volcanoes on the Moon as recently as 120 million years ago. Previously, scientists had thought that any activity with magma (molten rock) rising to the Moon’s surface ended billions of years ago.
