Alas, the miracle could not last. The solar storms were heating Earth's upper atmosphere, causing it to inflate and increase ...

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...

Tonight kicks off great week of star gazing in Pennsylvania, with the full moon rising next to Venus and a rare planetary ...

For centuries, space travel has been limited by traditional propulsion methods, with chemical rockets remaining the primary ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...