The U.S. government needs some more time to get to the bottom of the UFO mystery.
The US military has released previously classified photos and films related to unidentified flying object (UFO) sightings, which mostly show something blurry moving strangely.
The U.S. government is set to release a UFO report soon, perhaps sometime this week. What will it say?
NASA's Perseverance Mars rover has kicked off its highly anticipated science campaign with a Red Planet road trip.
NASA chief Bill Nelson told CNN that he has asked agency researchers to look into the spate of UFO sightings that U.S. Navy pilots have reported over the past two decades.
U.S. lawmakers called for an official assessment of UFO sightings in December, and the six-month deadline is up.
NASA's Perseverance rover and Ingenuity helicopter have now called the Red Planet home for 100 Martian days.
A clip of a mysterious spherical object hovers over the horizon, in footage released by a filmmaker who produces UFO documentaries.
A concept of a sample-return mission to Saturn's moon Titan envisions using local lakes of hydrocarbons as a source of fuel to power the trip home.
An autonomous submarine set to revolutionize deep-sea exploration will test technology for future space missions to moons with hidden oceans.
For the past five weeks, Perseverance has been focused primarily on supporting and documenting the flights of NASA's Ingenuity helicopter. But the rover has been doing some science work, too.
Intelligent aliens will soon have a space here on Earth where they can share how they made it through their technological adolescence.
Scientists have detected the largest stellar flare ever recorded from Proxima Centauri. The finding changes what we know about stellar flares and the potential for alien life around red dwarfs.
Mars' ancient history is interesting to scientists because if the arid planet was once warm and wet, it may have been habitable to life.
The famous equation used to search for alien civilizations has now inspired a new formula to hunt for alien artifacts within our solar system.