13
We tend to assume that an alien civilization would have its own home world - but what if they didn't actually need one ?
6
The Moon will be joined by a second natural satellite for a short time beginning this Sunday.
8
An Australian researcher believes he knows what happened to the plane and why nobody has found the wreckage.
4
The smallest planet in our solar system may be hiding a treasure with a value beyond imagination.
15
If an alien civilization has terraformed the atmosphere of a distant planet, we may be able to find it.
1
The private jet and its passengers had vanished without a trace, leading to decades of fruitless searches.
3
A planet thought to be the real-life equivalent of Spock's homeworld Vulcan might not actually exist after all.
0
China's answer to the X-37B is doing something in Earth's orbit and nobody is quite sure what that might be.
22
Luring inquisitive extraterrestrials to our planet using nuclear radiation seems like a bit of a shot in the dark.
26
A type of rare, though extremely energetic and deadly cosmic event is able to wipe out whole planets.
8
A gas discovered in the atmosphere of this distant extrasolar planet is 'only produced by life', say scientists.
10
A team of planetary scientists has found new evidence of an undiscovered planet in the outer solar system.
4
The SpaceX CEO has some ambitious plans to build a thriving city on the Red Planet within as little as 20 years.
9
Rumors have swirled for years around the development of a new type of hypersonic reconnaissance aircraft.
4
The details of the vehicle's latest mission are top secret, but that hasn't stopped an amateur astronomer from locating it.
1
Astronomers have identified a potentially habitable extrasolar planet situated around 137 light-years away.
5
An undersea mapping firm has captured a sonar image that is thought to show the late aviator's plane.
6
Samples collected from Jezero crater may contain fossil evidence of ancient microbial life on the Red Planet.
59
Declassified government documents suggest that a lack of UFO tracking represents a threat to national security.
1
NASA's decade-old rover recently spotted something rather familiar while trundling across the surface of the Red Planet.