Former NASA astronaut Dr. Leroy Chiao reported a close encounter with unidentified flying objects during a private flight ...

A former astronaut who spent 15 years with NASA says he came into contact with mysterious metallic orbs while flying a plane ...

That's because a black moon is the term for the second new moon to fall in a single calendar month, and new moons appear ...

A team of scientists has developed a type of sponge made of graphene oxide and chitosan, that can be used to extract gold from electronic waste. Chemists and materials scientists at the National ...