Even though we've all seen the pictures, only 556...  ...oked at our Earth from the vantage point of space orbit and came back to tell us about it. Only 24 have s...  ...nly 24 have seen it as a pale blue dot from lunar orbit . National Geographic talked with several of those...  ...ration for three years, using...

Most of the time when you hear the words “Me...  ...But retrograde is a real phenomena for planets in orbit . It just doesn’t mean all that much when yo...

Robert Krulwich addresses the problem of our human...  ...ave to drive a vehicle out to the other planetary orbits . Then it gets really neat, as they drive around w...  ...y drive around with lights after dark to show the orbits . Krulwich says,The most wonderful moment comes at...  ...tosses it along the deser...

There are a lot of celebrations going on for Docto...  ...kstarter campaign that seeks to put a TARDIS into orbit for the occasion. So far the project is about a t...

Data from NASA's Kepler space telescope shows...  ...Kepler space telescope shows two exoplanets that orbit closer to each other than any other planets yet d...  ...tain liquid water. The inner planet, Kepler-36b, orbits its host star every 13.8 days, and the outer plan...

[caption id="attachment_33566" align="aligncenter"...  ...but normal; Comet Swift-Tuttle had passed Earth's orbit in 1992, and astronomers predicted an unusually i...

These two photos are from the latest Space Shuttle Atlantis mission (STS-129), which seemed to come and go much faster than the one before it.  At left, Atlantis prepares to dock at the International Space Station.  ...