If the history of thermodynamics can teach us anything, it is that modest entropy reversals have not taken us back in time at all. But it is more fun to think otherwise, says guest Jimena Canales.
Commentator Adam Frank talks with Harvard astrophysicist Avi Loeb about exo-civilizations, techno-signatures, and the search for alien life — living or long-gone.
Tiangong-1, an abandoned Chinese orbiting lab, re-entered the atmosphere over the South Pacific Ocean Sunday evening, fulfilling predictions by the European Space Agency.
China's Tiangong-1, launched in 2013, is expected to re-enter the Earth's atmosphere sometime between March 31 and April 2, according to the European Space Agency.
A Japanese company is proposing a venture to create on-demand meteor showers using small spheres dropped from a satellite. Scientists aren't really keen to the idea.
Sunita Williams was the second female commander of the International Space Station. Now, she says her new job working with private companies to develop space technologies feels like a new frontier.
For two years Mike Hughes worked on a rocket. His goal was to prove the earth was flat. Over the weekend, he got a third of a mile into the air and then fell back to earth. The rocket had a parachute.
Astronaut Andrew Fuestel has been to space three times. He says he has a mild fear of heights, but he can push through it. He's OK after reaching hundreds of miles above the Earth.