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 have also been detected that emit X-rays and gamma rays.
Pulsars are essentially rotating, highly magnified neutron stars, but when they were first discovered it was believed that they could have come from aliens.
‘Wow!’ radio signal
In 1977, an astronomer looking for extraterrestrial life in the nearby sky above Ohio saw a powerful radio signal so strong that he enthusiastically wrote “Wow!” next to your data.
In 1977, an astronomer looking for extraterrestrial life in the nearby sky above Ohio saw a powerful radio signal so strong that he enthusiastically 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 objects.
Conspiracy theorists have since claimed that ‘Wow! signal ‘, which was 30 times stronger than the 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, listed as Allen Hills (ALH) 84001, crashed into frozen Antarctic debris 13,000 years ago and was recovered in 1984.
Photographs showing elongated segmented objects that looked surprisingly realistic were released.
Photos were released showing elongated segmented objects that looked surprisingly realistic (pictured)
However, the emotion did not last long. Other scientists questioned whether the meteorite samples were contaminated.
They also argued that the heat generated when the rock was launched into space may have created mineral structures that could be confused with microfossils.
Tabby Star Behavior in 2005
The star, also known as KIC 8462852, is 1,400 light-years away and has baffled astonomers since its discovery in 2015.
It dims at a much faster rate than other stars, which, according to some experts, is a sign that aliens are harnessing the energy of a star.
The star, also known as KIC 8462852, is 1,400 light-years away and has baffled astonomers since it was discovered in 2015 (artist impression).
Recent studies have “eliminated the possibility of an extraterrestrial megastructure” and instead suggests that a ring of dust could be causing strange signals.
Exoplanets in the Goldilocks zone in 2015
In February of this year, astronomers announced that they had seen a star system with planets that could support life only 39 light-years away.
Seven Earth-like planets orbiting the nearby dwarf star ‘Trappist-1’ were discovered, and all of them could have water on their surface, one of the key components of life.
Three of the planets are in such good condition that scientists say life may have already evolved on them.
The researchers say they will know if there is life on any of the planets within a decade, and said “this is just the beginning.”
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