Having a special day? See if the planets really were aligned for you. 
wolfr.am/OdxrNe

Having a special day? See if the planets really were aligned for you.

wolfr.am/OdxrNe

The Rosetta spacecraft awoke after a three year slumber on Monday. How far away is it from the Earth?

The Rosetta spacecraft awoke after a three year slumber on Monday. How far away is it from the Earth?

The International Space Station is orbiting the Earth 7.527 times faster than the Moon.

The International Space Station is orbiting the Earth 7.527 times faster than the Moon.

A user on Twitter just shared this great query. 

A user on Twitter just shared this great query. 

The International Space Station is traveling at an astronomical speed. 

The International Space Station is traveling at an astronomical speed. 

Which Voyager probe has traveled faster on average?

Which Voyager probe has traveled faster on average?

On July 15th, 1965, Mariner IV sent back the first close-up pictures of Mars. Check out the history of Mars missions!

On July 15th, 1965, Mariner IV sent back the first close-up pictures of Mars. Check out the history of Mars missions!

The Space Shuttle Atlantis flew its 33rd mission, marking the end of the U.S. shuttle program, two years ago today.

The Space Shuttle Atlantis flew its 33rd mission, marking the end of the U.S. shuttle program, two years ago today.

The Spirit Mars rover was launched 10 years ago today.
It performed all its functions using less power than a hand blender.

The Spirit Mars rover was launched 10 years ago today.

It performed all its functions using less power than a hand blender.

Four comparisons of the volume of a moon to its planet (and Pluto) in decreasing order.

Four comparisons of the volume of a moon to its planet (and Pluto) in decreasing order.