signs of life

Scientists study people with cardiac arrest, clinical death, then recover. This is the largest study ever on this topic.

More factors are believed to be signs of life on Pluto that have been discovered by scientists.

In the image recently obtained from Mars, many people believe that they see the image of a clam shell, and this may be a sign of life.

NASA's Curiosity Mars probe has made a second drill into the surface of the red planet to collect specimens for the analysis of life's traces, UPI said. know on 20/5.