Multiple research teams claim to have conclusively demonstrated quantum entanglement, which had been disdainfully dubbed "spooky action at a distance" by Albert Einstein.
Wearing a mask, Kelly floats toward the ISS camera to give us the creeps on Halloween.
Space is a vast, dark world full of cackling witch's heads, spiders, leering sun faces and body parts tucked into the soil of Mars. Have a look, if you dare.
Face of horror: The "Good Mythical Morning" hosts re-create a facial-perception experiment in which staring at someone's face, or into a mirror, produces weird hallucinations.
What's really making objects move in that viral craze involving pencils and summoning ghosts? It's not the demon you think it is, freaked-out teens.
ESA astronaut Alexander Gerst has been silently drifting through the ISS while his colleagues sleep, photographing the eerie atmosphere.
Tackle these DIY projects and easy how-tos for a tech-ified Halloween.
Ask this astronaut anything: Kelly reveals what life is like aboard the International Space Station in an interview on Reddit.
Live vicariously through a bold scientist who uses physics as a shield and stands in front of a live gun in a pool.
Since the 1950s, probes sent into space have been sending back data that reveal eerie sounds from the vastness of the galaxy.