Reply #28: Not so fast--we've sent PROBES, not spaceships. That's an important distinction. [View All]

[Bicoastal]

We've sent probes to land on the three inner planets (also a few moons) and orbit the outer gas giant planets. In the case of the ones that landed, they were small robots with cameras, and in some cases, wheels to get from point A to point B. And in the case of the gas giants, we COULDN'T land because there wasn't any way to--we could only orbit and take photos. No proof of life in any of these places.

And all other planets were found using telescopes, cameras, etc--it'd be very difficult to send any PEOPLE to any solid planets or moons other than Mars, and even then, it'd be very tricky. Sending people outside of our solar system would almost certainly be impossible even going 75% the speed of light. My dad is a rocket scientist--believe me, I know this stuff!