Those interested in astronomy are familiar with the fascinating concept of Dyson Sphere. The concept, described by Physicist Freeman Dyson in his research paper in 1960 put forth a fascinating thought experiment that advanced alien civilisations would build an enclosure (Dyson Sphere) around their host star in order to fulfil their energy needs.

Not Dyson Sphere, search other technosignatures to find aliens: Study

A panel of NASA, which is studying what has been termed by the government as "unidentified aerial phenomena," commonly called as UFOs, held its first public meeting on Wednesday to discuss their findings since the panel was established last year.

Can explain many sightings but some remain mystery, says NASA's 'UFO' panel

Extra-terrestrial water was found in a meteorite which landed last year in a driveway in the UK’s Cotswold town of Winchcombe. Reportedly, the Winchcombe meteorite is dubbed one of the most famous meteorites in the UK.

‘Extra-terrestrial water’ found in a meteor that landed in the UK last year

For several decades, the existence of UFOs has caused a lot of debate around the globe. While the governments over the world have remained tight-lipped about its presence, the idea that there might be extra-terrestrial creatures living in outer space was never shot down entirely.

Is there a UFO or not? The mystery is set to be revealed at Tuesday’s US Congress hearing

Alien-hunting has been a favourite topic among scientists and the public alike. While public has the luxury to go wild with its imagination about aliens, scientists need to rely on hard scientific proof in order to confirm the existence of alien life and extra-terrestrial intelligence.

Aliens calling? Scientists receive radio signals from faraway planet