With "The Americas," the latest nature documentary to grace our screens, filmmakers have captured two of the most enduring treasures the planet has to offer: stunning natural vistas and the calming ...

Scientists have detected an encouraging potential sign of life on a planet in a different solar system in what they believe is the “strongest indicator” that life exists beyond Earth.

This spacecraft is geostationary, meaning that it orbits Earth at the same speed as the planet spins, allowing it to watch one part of Earth from a fixed position. From its vantage point around ...