News tagged with dusty disks

ALMA reveals workings of nearby planetary system

A new observatory still under construction has given astronomers a major breakthrough in understanding a nearby planetary system that can provide valuable clues about how such systems form and evolve. The ...

Apr 12, 2012
5 / 5 (12) 2 | with audio podcast

Want to make planets? Better hurry

Currently, astronomers have two competing models for planetary formation. In one, the planets form in a single, monolithic collapse. In the second, the core forms first and then slowly accretes gas and dust. ...

May 24, 2011
5 / 5 (1) 18

How the Earth survived birth

For the last 20 years, the best models of planet formation—or how planets grow from dust in a gas disk -- have contradicted the very existence of Earth. These models assumed locally constant temperatures within a disk, ...

Jan 07, 2010
4.1 / 5 (7) 1 | with audio podcast

Twin Keck telescopes probe dual dust disks

Astronomers using the twin 10-meter telescopes at the W. M. Keck Observatory in Hawaii have explored one of the most compact dust disks ever resolved around another star. If placed in our own solar system, ...

Sep 24, 2009
4.7 / 5 (6) 1