The question matters to us, because life that is eternal in the past seems unlikely, if it can't persist indefinitely into the future. We welcome this modest endorsement of a way for life to outlast even the universe. And we realize that the subject needs more data. The End and the Big Bang is a related CA webpage. Florida Today discusses the full spectrum of ideas about life in space in a special Sunday section.
Retroviruses appear ancient.
From this evidence they deduce that vertebrate retroviruses couldn't have originated with mammals as previously thought. Researchers now believe that these 'retroelements' are major causes of genetic mutations and are significant factors in genome evolution. Imported Genetic Software is a related CA webpage. Water not seen after planned crash of Lunar Prospector. The controlled crash of NASA's Lunar Prospector spacecraft into a crater near the south pole of the Moon on July 31 produced no observable signature of water, according to scientists digging through data from Earth-based observatories and spacecraft such as the Hubble Space Telescope.