alien life
"I was not at his side while he lay on his deathbed, by choice. I chose not to hear his last words, and that’s hard for me to accept."
The planet may be covered in oceans.
Three years, 4,000 candidates and just 20 have passed.
Encouragingly, the atmospheres of the two planets are unlikely to be dominated by hydrogen.
Astronauts could take the device to Mars in the 2030s.
Our solar system could still support life long after Earth dies.