Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

Saturn has "gained" a staggering 128 new moons in a groundbreaking discovery by astronomers in Taiwan. The find, made by a ...

Jupiter’s striking size, swirling gases, and dramatic bands in its atmosphere set it apart from every other planet. One of ...

The Giant Planet resembles a majestic golden star, and stands high in the southwest at nightfall during April; it sets around ...

Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

This first light, as it's called, shows that all of the spacecraft's systems are working just as expected. "Based on the ...

SpaceX launched the private Fram2 mission Monday (March 31), sending a crew of four spaceflight rookies into an orbit never ...