Astronomers created what alien astronomers would see if they saw Earth

Earth has got its own 'fingerprint' so astronomers can use it to cross reference exoplanets outside of our own solar system.

Jak Connor
Published Thu, Aug 29 2019 3:04 AM CDT   |   Updated Sat, Aug 8 2020 10:29 AM CDT

Humans will forever be on this discovery chase of finding life outside of our own planet, and to do that we must invent the instruments that will make it much easier to detect potential life on other planets. Astronomers from the McGill University have just taken that step in the right direction.

Astronomers created what alien astronomers would see if they saw Earth |

These two McGill University students, Evelyn Macdonald and her supervisor Prof. Nicolas Cowan have devised a "fingerprint" for Earth. Both of the astronomers have used over a decade of observations of Earth's atmosphere which has been taken by SCISAT satellite that is currently monitoring the planet. With this data the astronomers constructed a transit spectrum of Earth, or a"fingerprint" containing information about Earth's atmosphere in infrared light.

Better known as a "bio-signature", the "fingerprint" also contains information about our ozone and methane levels which scientists expect to be the basic building blocks of life. Prof. Cowan said "A handful of researchers have tried to simulate Earth's transit spectrum, but this is the first empirical infrared transit spectrum of Earth. This is what alien astronomers would see if they observed a transit of Earth."

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Jak's love for technology, and, more specifically, PC gaming, began at 10 years old. It was the day his dad showed him how to play Age of Empires on an old Compaq PC. Ever since that day, Jak fell in love with games and the progression of the technology industry in all its forms. Instead of typical FPS, Jak holds a very special spot in his heart for RTS games.

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