Houchin and his colleagues studied dozens of zircon crystals from the Jack Hills in Western Australia. These are the oldest ...

There are many open questions about how our planet formed 4.55 billion years ago: When did plate tectonics start? When did the Earth's mantle begin to vigorously circulate in a process called ...

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was discovered. They celebrate scientific discovery, history and our solar system’s ...

New research shows that some frozen moons may hide boiling oceans beneath their icy shells, shaping strange surface features.

The “gravity hole” formed at least 70 million years ago after convection in Earth’s mantle. The weak gravity could impact our oceans.

El Niño could fuel extreme weather and raise temperatures to record highs this year, but how sure can we be that it will ...

Lunar eclipses occur when our planet slides between the sun and moon, which temporarily prevents the sun’s light from falling on the lunar surface. A total lunar eclipse is the most dramatic, and is ...

Icy moons circling the outer planets may be far more dynamic—and explosive—than they appear. New research suggests that when ...

Scientists identify exoplanet candidate HD 137010 b, a possible Earth-size world orbiting a Sun-like star 146 light-years away ...

Study in the International Journal of Astrobiology tests how water bears survive in simulated Mars soil, revealing how regolith may limit Earth microbes and what it means for planetary protection and ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

This Sky Above episode showcases the total lunar eclipse that will turn the moon a deep shade of red, astronomical spring, ...