Why have we never found alien life?

By Tatiana A. Dias

Thu, 24 Oct 2019

Our universe is 13.8 billion years old, with life on Earth only beginning around four billion years ago. The first life could have started about one to two billion years after that start of the universe, leaving a huge time period prior to signs of life on Earth where civilisations could have developed or wiped out. Could we, therefore, have missed a civilisation in the past or is there a civilisation yet to come that we could communicate with? Many feel we should be asking, why have we not come across intelligent alien yet?


Generic placeholder image
Tatiana A. Dias

news@challenge.org

Related Articles

...

Why Blockchain is becoming ...

Tue, 18 Jul 2017

Karveh Cavalieri

...

Dr. Zhongli Pan from USDA t...

Wed, 8 Aug 2018

Rebecca Lam

...

The significance of the new...

Thu, 31 Aug 2017

Vivek Varyani

Subscribe to join our

NEWSLETTER:

EU CitizenNon-EU Citizen

Trending Now