Police are attempting to find out who built an elaborate tunnel near the venue for the Pan Am Games.
A TV production team filming a show in Lima turned their cameras skyward to record a strange object.
A sophisticated remote operated crime-busting robot could soon be found patrolling the streets.
A strange saucer-shaped object has been dug up by miners during excavation work in Siberia.
Boston Dynamics is back with another eerily realistic robot that can stop itself from falling over.
A bright object was filmed in the distance above the trees over the course of fifteen minutes.
Four unidentified figures have been captured in a controversial video recorded through a webcam.
The Russian city of Saratov ended up painted orange this week as tinted snowflakes fell from the heavens.
A video showing a figure walking through the snow was recorded on Tuesday in Brooklyn, New York.
A mysterious figure was caught on camera by a canoist in marshlands outside of Tampa, Florida.
A helicopter drone could help a rover on Mars to scout the terrain ahead and locate places of interest.
Scientists have developed a material so water repellent that water droplets simply bounce off it.
Engineers in Germany have built the first step towards a matter transporter like those seen in Star Trek.
Footage has emerged of a strange object which allegedly hovered in the sky for around three minutes.
Footage has emerged showing a large hominid strolling through the snows of a Russian forest.
The tenth anniversary of Huygens' descent on to the Saturnian moon has been marked with a new video.
CCTV footage has emerged of an alleged 'ghost' wandering the hallways of Pocatello High School.
German scientists have discovered what may be the impact site of a meteorite that struck 11 years ago.
Ken Roberts had been driving home when he witnessed something unusual shooting across the sky.
An aircraft passenger managed to capture footage of an unidentified object above the city.