Earth’s deep interior may hold water equal to today’s oceans, challenging long-held views of how the planet became habitable.

While the cold weather may deter many from going outside, others like to take advantage of the freezing temperatures and test out different science experiments. From blowing frozen bubbles to throwing ...

An artist’s depiction of an exoplanet larger than Earth and smaller than Neptune. A blue planet in the foreground blocks the light of a star. Recent high-temperature, high-pressure experiments suggest ...