A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.

"The combination of extreme disk size, strong asymmetries, winds, and potential planet formation makes it the perfect ...

Leonardo Testi and team investigate the initial conditions for planet formation in this special astronomy focus ...

The discovery of an extraordinary multi-planet system has demonstrated that so-called "hot Jupiter" planets may not be lonely giants after all. The findings could force scientists to revise their ...

Have you ever found something unexpected in your hamburger? Astronomers using the Atacama Large Millimeter/submillimeter ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar ...

Hubble reveals the largest planet-forming disk ever seen, Dracula's Chivito, showing a chaotic and uneven environment around ...

An artist’s impression of the two new planets discovered. An inner super-Earth, here seen transiting in front of the orange host-star and an icy giant planet on the periphery of the system. The ...