Humans are on the cusp of detecting alien life on a distant planet.

This is according to scientists who said that based on all that is known about physics, biology and chemistry, 'we are not alone' in the universe.

Experts believe NASA's James Webb Space Telescope (JWST) - the most powerful device ever launched into space - will help lead the charge in discovering an exoplanet hospitable for life in the next 25 years.

Astrophysicist Sasha Quanz, from the Swiss Federal Institute of Technology, believes aliens will be confirmed in two and a half decades, but JWST will not do it - its successors will. 

These statements are echoed in a recent study from the University of California that stated extraterrestrials will make contact with humans by 2029, but not with the help of telescopes.

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