The Planetary Health Check is a key monitor of earth's vital signs—and will guide action for a more sustainable world.

A new study led by researchers at the Earth-Life Science Institute (ELSI) at Institute of Science Tokyo challenges a long-standing assumption about Earth's most extreme ice ages. Using numerical ...

It provides a dynamic, time-resolved view of planetary transformation, a missing link between young inflated worlds and the compact sub-Neptunes that populate the galaxy.

About 4.6 billion years ago, a celestial cloud collapsed, paving the way for our solar system to form. Then, a nebula with strong gravitational pull took shape, kick-starting the birth of the sun. But ...

Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

Astronomers may have demoted Pluto from full-fledged planet to dwarf status, but evidence suggests the solar system may still host a mysterious ninth planet — far beyond Neptune, cloaked in shadow and ...

The planets are aligning. This Saturday is a rare chance to see several of our closest cosmic neighbors in a single sky. Six planets will assemble themselves for a spectacular “planetary parade” that ...

NEW YORK (AP) — Six planets are linking up in the sky at the end of February, and most will be visible to the naked eye. It’s what’s known as a planetary parade, which happens when multiple planets ...

Astronomy enthusiasts and casual skywatchers alike have a reason to look up this February. On the evening of February 28, a ...