News tagged with early solar system

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Solar system ice: Source of Earth's water

Scientists have long believed that comets and, or a type of very primitive meteorite called carbonaceous chondrites were the sources of early Earth's volatile elements—which include hydrogen, nitrogen, ...

Jul 12, 2012
4 / 5 (7) 32 | with audio podcast

Meteorites: Tool kits for creating life on Earth

Meteorites hold a record of the chemicals that existed in the early Solar System and that may have been a crucial source of the organic compounds that gave rise to life on Earth. Since the 1960s, scientists have been trying ...

Aug 08, 2011
4.3 / 5 (6) 3 | with audio podcast

To an asteroid, and beyond

The asteroid 1999 RQ36 may not be a household name, but astronomers predict that in less than 200 years, it may make an unforgettable impact. According to radar and optical observations, the space rock, measuring ...

Jul 26, 2011
5 / 5 (5) 0 | with audio podcast

Amino acid alphabet soup

All life on Earth relies on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way?

Aug 19, 2011
4.4 / 5 (5) 9 | with audio podcast

Crackling noise during growth

Globules of fat in homogenised milk, dust particles in the early solar system and small magnetic domains in ferromagnets are all examples of small parts coming together to form one whole, like "birds of a ...

Aug 08, 2013
5 / 5 (4) 1 | with audio podcast

Solar system's youth gives clues to planet search

Comets and meteorites contain clues to our solar system's earliest days. But some of the findings are puzzle pieces that don't seem to fit well together. A new set of theoretical models from Carnegie's Alan Boss shows how ...

Jul 24, 2013
5 / 5 (3) 0 | with audio podcast