Allende Meteorite

A new radiation-based mechanism adds to the ways that amino acids could have been made in space and brought to the young Earth.

Article URL: https://en.wikipedia.org/wiki/CI_chondrite Comments URL: https://news.ycombinator.com/item?id=30981118 Points: 1 # Comments: 0

Just over 12 months ago, we were sitting at Woomera, in the Australian outback, waiting for a streak of light in the sky to testify that the Hayabusa2 spacecraft had returned from its ...

The cohesive force of asteroid particles influence microgravity and can be evaluated under several assumptions of particle size and their sensitivity to particle shape. Approximately hundreds of kilograms of material fall on to Earth's atmosphere daily from space, and filter down as tiny grains and fine dust. Many meteorites that reach Earth from space are pieces of asteroids.

Just over 12 months ago, we were sitting at Woomera, in the Australian outback, waiting for a streak of light in the sky to testify that the Hayabusa2 spacecraft had returned from its voyage to collect a little piece of a near-Earth asteroid called Ryugu. Unfortunately for us, it was cloudy in Woomera that day and we didn't see the spacecraft come in.

Scientists have determined a precise lead isotopic age of the andesitic achondrite meteorite Erg Chech 002.

NASA's Psyche mission, a project with deep roots at MIT, is setting course for a metallic space rock that could be the remnant of a planetary core like our own. Its principal investigator is MIT alumna and former professor Lindy Elkins-Tanton, who leads a team including longtime MIT colleagues on the first mission to a metal world.