spacemodo

The Human Heart May Not Be Able To Handle The Trip To Mars

The Human Heart May Not Be Able To Handle The Trip To Mars

Anyone dreaming of casting off the shackles of Earth for the microgravity wasteland of Mars is in for some (more) bad news. In addition to a host of other problems, the necessary 18-month spaceflight would, apparently, lead to one very unhealthy (and spherical) astronaut heart.

How Space Heat Helps Us Hunt Down Alien Technologies

How Space Heat Helps Us Hunt Down Alien Technologies

My colleagues and I have begun the Glimpsing Heat from Alien Technologies (G-HAT) SETI program, which has been written about here on Centauri Dreams and in other places, like in this nice summary article. I describe some of the foundations of the search here on my blog, but I have…