Edwin Hubble's discovery of the expanding universe transformed cosmology, revealing countless galaxies and laying the ...

Mars, once a planet abundant with water, now lies as a barren, arid expanse. Its surface features reveal a history where ...

One of NASA’s two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on her first spacewalk since arriving at the International Space Station ...

FLORIDA TODAY has left messages unsuccessfully attempting to contact Space Perspective executives for comment.