Alien civilizations could be trying to communicate with us, using extremely advanced neutrino-based communication systems and we may be unable to detect it.
A new TV series reports the contents of declassified mission transcripts.
We know very little about aliens, and even less about whether we are on par with them or not, feel scientists.
According to a recent study published in Astrobiology, researchers belonging to the Australian National University give single explanation, there is a fair chance that the life in planets outside of earth has already lived its course.
Data from KIC 8462852 showed unusual dimming of the star's light which led to the speculation that it an alien megastructure around it was harnessing energy.
An image taken by US astronaut Scott Kelly shows what looks like a UFO.
A star is being observed by alien hunters
Curiosity - the Mars rover which roamed the surface of Mars since 2012 - has arrived at a scientifically enticing new destination. Some of the images returned are already baffling UFO enthusiasts.
Humans might be the last species to evolve in the universe, a Harvard astrophysicist has claimed.