Space Fact #9: Moon to Mars Is Downhill
/To travel to Mars, astronauts will have to complete about 8,750 Columbus voyages of distance.
Read MoreTo travel to Mars, astronauts will have to complete about 8,750 Columbus voyages of distance.
Read MoreVenus used to be a pleasant, watery, habitable planet much like ours. The Martian atmosphere, it turns out, also used to be much more like Earth’s
Read MoreIt really wasn’t that long ago when the two greatest superpowers were vying to put satellites into space. Now, 50 nations have their own satellites in low Earth orbit. If you’re a Thailand, say, you can call Space Systems/Loral, a Canadian-owned company based in Palo Alto, California, and tell them you want to put a satellite into geostationary orbit for television broadcasting or military communications. You can have the thing in orbit 25,000 miles above Earth within two years.