Earth

The future is always hard to predict, especially millions of years from now. But researchers found that a future supercontinent centered around the tropics may be tough for mammals to survive.

Less than two weeks after it was discovered, asteroid 2023 DW sits at the top of the "risk list" maintained by the European Space Agency.

Geologists rely on tiny crystals of the mineral zircon to understand the timing of key events in Earth's early days, like the rising of continents and the emergence of oceans.

VAN HORN, Texas — A private space company founded by Amazon.com CEO Jeff Bezos has launched an unmanned spaceship in its first test flight, the latest…

Messenger was launched from Earth in 2004. After 4,104 orbits of Mercury and billions of miles of space travel, the orbiter ended its mission with a quiet bang Thursday.

During astronaut Scott Kelly's year in space, scientists will compare his physiology with that of his twin brother, Mark, to study the effect of prolonged space flight on the human body.