During the Cold War, a spate of mysterious sightings ended up exposing a plot to hide nukes from the US.
The major policy change was revealed on Friday as the space agency grappled with delays and technical issues.
An analysis of soil samples taken from the base of some of the statues has revealed something unexpected.
Dr Gentry Lee, who worked on the Mars Viking mission, has spent decades designing probes that land on other worlds.
The return of the iconic 90s TV series will feature two new leads and looks set to carry on where the old show left off.
During the 1950s, the CIA had been working on a program designed to find ways to manipulate people's behavior.
The site, which offers a huge collection of declassified government documents, saw its archive disappear overnight.
In a surprising move, President Trump has suddenly decided to release previously classified UFO documents.
It may still be possible to intercept the enigmatic interstellar visitor... but it might take a while.
A cluster of 100 stellar mass black holes is thought to be making its way through the Milky Way.
The manned mission had been delayed following a hydrogen fuel leak during testing earlier this month.
New research into the mechanics of consciousness have revealed fascinating new insights into how it might arise.
New research has offered up a new interpretation of a letter found in the 18th century thought to be from Shakespeare's father.
A remarkable stage performance has this week highlighted just how far robots have come over the last few years.
Turning water into fuel would be revolutionary and could make it possible to produce fuel on the Moon or Mars.
An Arizona State University researcher has compiled compelling evidence concerning death and consciousness.
The discovery of a distant solar system with its planets in a seemingly impossible order has been revealed this week.
An Australian scientist maintains that the Bermuda Triangle enigma may not be much of an enigma at all.
Footage of the unusual phenomenon was recently uploaded onto social media by local resident Mandy Campbell.
Imagine if instead of getting an injection, you could take a vaccine simply by downing an alcoholic drink.