Latest Late Heavy Bombardment Stories
The bombardment of Earth nearly 4 billion years ago by asteroids as large as Kansas would not have had the firepower to extinguish potential early life on the planet and may even have given it a boost.
Meteorites provide valuable information about the early history of the solar system. A group of Swiss geologists have conducted systematic meteorite searches in Oman since 2001, and they recently returned from their latest hunt.
The argument over whether an outcrop of rock in South West Greenland contains the earliest known traces of life on Earth has been reignited, in a study to be published in the Journal of the Geological Society on 23 February.
There are hundreds of thousands of asteroids circling our sun, all so-called "minor planets" left over from the formation of the solar system. Much about them remains mysterious. Solving these mysteries could shed light on the past, present and future of cosmic impacts on Earth.
University of Arizona and Japanese scientists are convinced that evidence at last settles decades-long arguments about what objects bombarded the early inner solar system in a cataclysm 3.9 billion years ago.
By using a computer program to play a complex game of "what if," scientists have developed a tale of chaos in the early solar system that they say explains several mysteries about why our cosmic neighborhood turned out the way it did.
- To writhe; struggle or twist about with more or less force; wriggle.
- To scribble, jot.