In February, stargazers everywhere got to see a seven-planet alignment - called a "planetary parade." It'll be a while before ...

Future missions to Venus could also supply additional data on the density and temperature of the planet's crust, which could ...

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

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

The world of Sailor Moon does not just relate to our own solar system, but the many unknown planets from the original story ...

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than ...

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

Anita Chauhan works with startups in Toronto, and she can easily describe the kind of looks she used to get from her tech-bro ...

Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

The moon slipped between the Earth and the sun on Saturday, casting a shadow on our planet in parts of the United States, ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...