The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

D printers will make the tools, structures, and habitats space pioneers need to survive in a hostile alien environment.

They will enable long-term human presence on the moon and Mars. On Earth, 3D printing can fabricate ... of building housing on the red planet. But many of these technologies will benefit people ...

March’s night sky brings a total lunar eclipse, a rare chance to see Mercury, and shifting planets. Don’t miss these ...

WASHINGTON (Reuters) - Astronomers for the first time have deciphered the three-dimensional structure of the atmosphere of a planet beyond ... like the moon is to Earth. The side facing the ...