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Two months ago, Dr. Hal Levison from the Southwest Research Institute (SwRI) in Boulder, Colorado, co-authored a paper that described a theory of “pebble formation” for gas giants. He has now expanded ...

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ingredients of planets already stretching to Neptune-like orbits. Using the ...

A key method of forming planets finally has observational evidence, thanks to a network of radio telescopes in the U.K. that have resolved the existence of a huge abundance of centimeter-sized pebbles ...

The huge clouds of pebbles rapidly accrete to form the rocky cores of gas giants like Jupiter. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.