It's long been assumed that most or all such grooves are evidence of still-forming protoplanets, but only a few like WISPIT ...

A recent study accepted for publication in The Astrophysical Journal Letters discusses how astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) to examine protoplanet HD 169142 b, ...

PASADENA, Calif. — Continent-sized remnants of another world could be found deep inside the Earth, according to a new study coming out of California. Researchers believe the remnants could be pieces ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustration of a protoplanet smashing into Earth just after it formed. The remnants of a protoplanet that slammed into Earth and ...

Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...

Astronomers have confirmed the very rare discovery of a new planet early in its formation, an advance that could help better understand how gas giants like Jupiter in our own solar system formed. The ...

A new paper suggests that Uranus might still contain evidence of the catastrophic impact that knocked it on to its side and shaped much of its evolutionary history. If it's accurate, there are some ...

An international research team has discovered a new planet so young that it has yet to emerge from the womb of matter where it is forming. This is the youngest protoplanet discovered to date. It's ...