About 700 million years ago, Earth was entombed in a veneer of ice hundreds of feet thick—a frozen state scientists refer to ...

When astronomers announced Kepler-452b, they were not just adding another distant world to a growing catalog. They were ...

Earlier research held that meteorite impacts from the solar system's early days were a major source of Earth's water.

“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

Evidence from fossil shells suggests that falling seawater calcium helped lock away carbon dioxide and helped cool Earth after the dinosaurs.

If someone tried to put a price tag on Earth, what would that number even be based on? Land, oceans, ecosystems, raw ...

In 2025, the ocean absorbed an extra 23 zettajoules of heat energy in 2025, breaking the ocean heat content record for the ...

New evidence of ancient rivers suggests Mars may have been a "blue planet," thanks to an ocean spanning its entire northern ...

We've always called Earth the blue planet, but that color might not be permanent. Previous research claims our oceans were once green, and if environmental conditions shift dramatically, a new study ...

Our planet is unique for its ability to sustain abundant life. From studies of the rock record, scientists believe life had already emerged on Earth at least 3.5 billion years ago and probably much ...

"A strong magnetic field is very important for life on a planet," study lead Miki Nakajima, an associate professor in the ...

The last ice age did not shut down Atlantic ocean currents, and that discovery may help explain future climate risks.