Discovery of pulsars
British astronomer Dame Jocelyn Bell Burnell was the first person to discover a pulsar in 1967 when she saw a radio pulsar.
Since then other types of pulsars emitting X-rays and gamma rays have also been seen.
Pulsars are essentially rotating neutron stars, very magnate, but when they were first discovered it was thought they could come from aliens.
“Wow!” radio signal
In 1977, an astronomer looking for alien life in the sky over Ohio saw a powerful radio signal so loud that he excitedly wrote “Wow!” next to your data.
In 1977, an astronomer looking for alien life in the sky over Ohio saw a powerful radio signal so loud that he excitedly wrote “Wow!” next to your data
The 72-second explosion, detected by Dr. Jerry Ehman through a radio telescope, came from Sagittarius but did not match any known celestial object.
Since then, conspiracy theorists have claimed that the program ‘Wow! the signal ‘, which was 30 times stronger than background radiation, was a message from intelligent aliens.
Fossilized Martian microbes
In 1996 NASA and the White House made the explosive announcement that the rock contained traces of Martian insects.
The meteorite, cataloged as Allen Hills (ALH) 84001, crashed into frozen Antarctic debris 13,000 years ago and recovered in 1984.
Photographs were posted showing elongated segmented objects that looked really amazing.
Photographs were posted showing elongated segmented objects that looked really amazing (pictured)
Still, the excitement didn’t last long. Other scientists questioned whether the meteorite samples were contaminated.
They also argued that the heat generated when the rock exploded into space could have created mineral structures that could be confused with microfossils.
Tabby’s Star behavior in 2005
The star, also known as KIC 8462852, is 1,400 light-years away and has baffled astronomers since it was discovered in 2015.
It slows down at a much faster rate than other stars, which some experts have suggested is a sign of aliens harnessing a star’s energy.
The star, also known as KIC 8462852, is 1,400 light-years away and has baffled astronomers since it was discovered in 2015 (artist’s print)
Recent studies have “ruled out the possibility of an alien megastructure” and instead suggest that a dust ring could be causing the strange signals.
Exoplanets in the Goldilocks area in 2015
In February this year, astronomers announced that they had seen a star system with planets that could support life just 39 light-years away.
Seven Earth-like planets were discovered orbiting the nearby dwarf star “Trappist-1”, and all of them could have water on the surface, one of the key components of life.
Three of the planets are in such good condition that scientists say life may have evolved.
The researchers say they will know if there is life on any of the planets in a decade and said “this is just the beginning.”