Earth's oceans are unique in the solar system and essential for life, but experts say that our planet wasn't always so blue.

Scientists may have finally found an answer to one of the biggest mysteries surrounding our planet: Where did Earth's water ...

The theory that comets delivered the molecular building blocks for life on Earth is a long-standing one, since comets are ...

A new study reveals how the brain's internal map responds when we witness another individual's pain, offering clues to how we ...

Every night, we sleep peacefully on a planet that is spinning as it travels around the sun.Tonight's "Sleep Education Room" ...

All water comes from somewhere. Researchers who want to know where it comes from rely on water isotopes, variants of water ...

A remarkable image from ESA’s Rosetta mission captures a spacecraft beside an ancient comet, offering a rare view of the ...

Dead star discovery shows what will happen to Earth when the Sun burns out - ‘The system is a rare glimpse of the violent, chaotic process by which a planetary system meets its end,’ says astronomer ...

From classroom calculations to rocket launches, teams from 15 countries tested their creations under real flight conditions.

Science doesn't always get things right the first time. These 15 once-accepted ideas reveal how discoveries transformed ...

Recently, I had the opportunity to pass by places like "Sakurazaka," "Anzenji-zaka," and "Yureizaka" in Tokyo, and I was ...