The Civil Aviation Authority has been using an EU law to withhold information about pilot UFO sightings.
It has been exactly two decades since NASA's Pathfinder mission touched down on the surface of Mars.
The remarkable longevity of Roman sea piers has proven something of a mystery to modern engineers.
Archaeologists have located the site of a gruesome structure that was built from hundreds of human skulls.
The Mexican government is hoping to use specially trained dolphins to save the vaquita porpoise.
Japan's Aerospace Exploration Agency (JAXA) is aiming to scale up its manned space exploration program.
A crystal clear photograph taken by the Opportunity rover shows an unidentified object sitting nearby.
A Star Wars enthusiast from the UK has made a tidy profit by rebuilding the droid from spare parts.
The world's most famous unmanned submersible has made a triumphant return from its maiden voyage.
For the first time ever, scientists have observed two supermassive black holes orbiting one another.
Mary Poppins fan Emma Davenport was so fond of the character that she decided to actually become her.
German company ThyssenKrupp has developed an elevator that can go horizontally as well as vertically.
NASA has played down the suggestion that it is on the verge of announcing the discovery of alien life.
Scientists have determined that merely having your phone nearby can reduce your capacity to concentrate.
The double launch showcased the private space firm's ability to scale up and manage multiple launches.
Footage recorded by a wildlife camera in Tennessee shows two whitetail bucks slapping each other silly.
The idea that the cosmos may be self-aware has intrigued scientists and philosophers for centuries.
A French scientist is working on a novel new way to keep Earth's orbit clear of defunct satellites.
The National Archives has published a collection of 15 Ministry of Defence files on the subject of UFOs.
ESA is set to launch a new satellite that will seek out potentially habitable extrasolar planets.