Related topics: spacecraft · solar system

How far are the planets from the Sun?

The eight planets in our solar system each occupy their own orbits around the Sun. They orbit the star in ellipses, which means their distance to the sun varies depending on where they are in their orbits. When they get closest ...

How many planets are in the solar system?

I'm just going to warn you, this is a controversial topic. Some people get pretty grumpy when you ask: how many planets are in the Solar System? Is it eight, ten, or more?

Sharpest-ever ground-based images of Pluto and Charon

(Phys.org)—Despite being infamously demoted from its status as a major planet, Pluto (and its largest companion Charon) recently posed as a surrogate extrasolar planetary system to help astronomers produce exceptionally ...

The Rings of Pluto?

Like other bodies in the outer Solar System, Pluto may have have rings orbiting it. Finding these rings could be important for the safety of NASA's New Horizons mission - currently en route to the tiny world.

Does the Pluto system pose a threat to New Horizons?

With nearly two-thirds of its journey complete, the New Horizons spacecraft is still alive and well. It recently experienced a “hibernation wakeup” which started on November 5th and will last until November 15th… ...

Mauna Kea telescope back up after lightning strike

(AP) -- A Mauna Kea telescope that was knocked out by lightning more than two months ago is fully operational again after undergoing repairs, the telescope's director said Friday.

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