Dan Hooper, a senior scientist at the Fermi Accelerator Laboratory in Illinois, outlined this new alien concept in a new paper.
The development of science can make humans now disappear in less than 100 years.
Only a quarter of a century of humanity will find intelligent creatures at distant planets, according to the head of the program to hunt for extraterrestrial life.
Scientists have come up with some solutions to the question, how will our Earth change if aliens exist?
Astronomer Seth Shostak of the Search for Alien Intelligence (SETI) said that people are about to find alien intelligence, Futurism on October 1 reported.
US scientists say they are not looking for messages from aliens and how to decode them, but only focus on finding radio transmitters that suggest that aliens exist.
The search for extraterrestrial civilization SETI needs to focus on finding the signals of sentient machines into space rather than looking for forms of a specific biological life.