It has been one of the biggest unanswered questions for decades – is there, or was there ever, life elsewhere in the solar system?
Now, a space scientist believes he may have the answer. According to Daily mail
Professor Jason Wright claims that 'technological' aliens may have once lived on one of the planets in our solar system, before disappearing without a trace.
Professor Wright is an associate professor in astronomy and astrophysics.
In a paper, titled 'Prior Indigenous Technological Species', Professor Wright suggests that ancient aliens could have lived on Mars, Venus or even Earth.