How to Silence Your Thoughts And Drift Off to Sleep: An Expert Explains

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Striking Gamma Ray Image Reveals How The Moon Is 'Brighter' Than Our SunAstronomers Show Dead Planets Could Be 'Broadcasting' Radio Wave Signals Into SpaceElon Musk Wants to Drop Nuclear Bombs on Mars

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Jupiter May Have Absorbed a Whole Other Planet Early on, Study Suggests

Astronomers Have Detected a Whopping 8 New Repeating Signals From Deep SpaceInfamous Scroll Claims to Be Oldest Copy of Ten Commandments. Is It Fake or Not?

Does Your Bad Mood Stick Around? Neuroscientists Find Key Brain Region InvolvedIsrael's 'Cave of Horrors' Has Yielded a Treasure Trove of Startling New Discoveries

The Sensitivity of Human Fingertips Is Greater Than We Ever ImaginedDid Humans Once Wipe Out Neanderthals? Here's What We Know