While
zipping around Earth several hundred miles above the planet's surface, European Space Agency astronaut Luca Parmitano drove a 220 - pound (100 kilograms) rover across a moon - mimicking landscape here at NASA's Ames Research Center, even ordering the robot to deploy a simulated film - based radio telescope antenna.
But the growing number of artificial objects
zipping around Earth has inspired a more synthetic form of skygazing: the new sport of satellite watching.
Not exact matches
Solar wind creates a huge magnetic bubble, known as the heliosphere, that protects
Earth and the other planets from energetic subatomic particles that constantly
zip around in deep space.
According to NASA, just by being on the planet
earth in the last year, you've
zipped about 584 million miles
around the sun to get back where you were.
The International Space Station is whizzing
around the
Earth at a speed of approximately 17,200 miles per hour (27,600 kilometers per hour) and, as a result, astronauts on board experience 16 sunrises and 16 sunsets per day as their travel speed
zips them
around the globe once every 90 minutes or so.