Just six light-years from the solar system — in cosmic terms, our backyard — exists a world ... In 2016, astronomers found a planet orbiting the nearest star to Earth in this system, called ...

Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

rovers to Mars and spacecraft to the outer reaches of the solar system. But could humans or spacecraft ever reach Alpha ...

What will happen to the solar system when the Milky Way completes the merger with the Andromeda Galaxy? Bryan ...

Traveling from one star to another is currently impossible ... This Is the Best Way to Exit Our Solar System So…what’s the catch? Glad you asked. For one, a solar-based statite is hypothetical ...

The planet, called Proxima b, orbits its parent star every 11 days and has a temperature suitable for liquid water to exist on its surface. This rocky world is a little more massive than the Earth, ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Sirius, the Dog Star, is difficult to ignore. Ostentatiously scintillating on the southern horizon right now, the “Searing ...

The solar system is made up of the Sun (our nearest star) and the objects that orbit around it, including planets, asteroids and comets. Planets orbit the Sun in roughly circular paths ...

There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...