In the wee hours of Tuesday morning, the moon fell completely into Earth's shadow and turned a shade of red — either an astronomical delight or Election Day omen, depending on who you ask.
Supermoons in general appear 17% bigger and 30% brighter than when the moon is at its farthest point away from Earth, according to NASA.
The latest estimate from various forecast centers around the world say the planet is approaching a warming threshold international agreements are trying to prevent.
NASA and the European Space Agency are gearing up to bring home a pristine sample of Martian rock. But given the small chance of life on the red planet, they have to grapple with safety questions.
During a partial solar eclipse, the moon is not perfectly aligned with the Earth and sun, so it will not completely cover the sun.
A NASA mission to a potentially dangerous asteroid has let researchers map out its future trajectory like never before.
Some unusual meteorites suggest that Earth got its water at its start, rather than forming dry and being watered by comets later on.