Since meteorites are mostly pieces of asteroids, this discrepancy was hard to explain, but a team from MIT and other institutions have now found what they believe is the answer to the puzzle. The smaller rocks that most often fall to Earth, it seems, come straight in from the main asteroid belt out between Mars and Jupiter, rather than from the near-Earth asteroid (NEA) population.
Adapting to the damaging effects of climate change, plants are gradually moving to where temperatures are cooler, rainfall is greater, f...
CAMBRIDGE, Mass. -- For the last few years, astronomers have faced a puzzle: The vast majority of asteroids that come near the Earth are of a type that matches only a tiny fraction of the meteorites that most frequently hit our planet.
Labels: Space/Cosmic News