Interplanetary Spacecraft, Ranked

We may be dirty monkeys at heart, but humans have done some pretty astonishing things in outer space over the past 50 years. We’ve launched dozens of interplanetary spacecraft, and explored most of the solar system with space robots who sent back pictures and scientific data. Here are our favorite of those craft,… » 6/17/15 3:15pm 6/17/15 3:15pm

Contact with Curiosity may be lost during its descent to the Martian…

As NASA prepares for the August 6 landing of the Curiosity rover on Mars, its scientists have made the disturbing realization that communication will likely be lost during its harrowing seven minute descent to the surface. Engineers attribute the fault to a critical support satellite, Odyssey, which is currently… » 7/17/12 11:23am 7/17/12 11:23am