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UC Berkeley and University of Hawaii scientists have shown that complex molecules can form on icy rocks in space, suggesting that comets may have seeded early Earth with the building blocks of life. The team zapped icy snowballs of carbon dioxide and hydrocarbons, producing complex molecules, such as dipeptides, that are capable of catalyzing the formation of more complex structures.
Tag: comets
Exocomets may be as common as exoplanets
January 7, 2013:
Astronomers have found thousands of potential exoplanets and many stars with massive disks of gas and dust that suggest planets are forming, but not much of the stuff intermediate between dust and planets, such as asteroids, planetesimals and comets. UC Berkeley astronomer Barry Welsh has looked closely at a number of stars with dust disks and found evidence that they also have comets.
