Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) found a young star surrounded by an astonishing mass of gas. The star, called 49 Ceti, is 40 million years old and ...

This story is a part of our spring Book Club conversation about ‘The Sirens of Mars: Searching for Life on Another World.’ Join our online community space, record a voice message on the Science Friday ...