Our solar system used to have nine planets ... around other stars — it would be incredible to actually study one up close, because exoplanets are so far away that it’s very difficult to ...

Now, a new study published Nov. 11 in Nature Astronomy has revisited the Voyager 2 data and discovered that Uranus was ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

Voyager 2 flew by Uranus in 1986, giving us our only up-close look at the planet – but unusual space weather just before the craft arrived has given us a misleading idea about the planet’s ...

we will be able to examine another solar system up close before you know it. The infographic below shows the details. A 20 year travel time is a giant leap forward in space travel. Consider that ...

Staring at the sun—a close (but safe) look at our home star ... Free learning activities and videos about the solar system Free learning activities and videos about the solar system Free ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

To evade astronomers’ notice for 30 years, the two brown dwarfs would need to be located very close to each other ... of properties observed in alien solar systems. At the moment, Gliese ...