Now has come the time for the best of the best, the cream of the crop – the very top “What Is This Thing?” posts of all time.

You don’t have to be an archaeologist to stumble upon fascinating and mysterious objects. All around the world, people have discovered extraordinary items — sometimes tucked away in old basements, ...

To understand the basic concept of the idea, just look to a universal remote of today—instead of a remote controlling and synchronizing your TV, Xbox 360, and speaker system, each device—using RFID ...

That’s the official word from NASA about an interstellar object known as 3I/ATLAS. The object, first identified by NASA’s Asteroid Terrestrial-impact Last Alert System in July, had scientists and the ...