Comets are pristine remnants left over from the solar system's formation 4.6 billion years ago, rather than younger fragments created by collisions between larger bodies, a new study suggests.
Among their 1,000 pages, the newly found diaries of Holocaust architect Heinrich Himmler track his hourly schedule—filled with activities both mundane and grotesque—over the years 1938, 1943, and 1944.
Joan of Arc's claim to fame — the mysterious voices she heard and visions she saw during the Hundred Years' War — may actually have been due to a form of epilepsy, Italian researchers suggest
An ancient foot bone from South Africa with an aggressive form of cancer on it is the oldest evidence of cancer in a human relative, researchers from South Africa reported recently.
One day, your grandchildren may open their science textbooks and read about elephants, tigers and lions as majestic, extinct creatures that once roamed the Earth like woolly mammoths and Triceratops
A newfound extinct marsupial "hypercarnivore" from Australia — one that researchers say looked like a cross between a Tasmanian devil and a hyena — was about twice as big as Australia's largest living flesh-eating marsupials, a new study finds.
For 340 years, the Swedish ship Kronan has languished at the bottom of the Baltic Sea, the 126-gun warship's permanent resting place after it was sunk right before a 1676 skirmish with Denmark and the Netherlands, Atlas Obscura reports.
The rarified group of men who blasted off from Earth on the Apollo missions have suffered from much higher rates of death by cardiovascular disease than not only other astronauts, but a slice of the U.S. population as a whole, a new study finds.
Genetic tests confirm that a mysterious, unnamed species of beaked whale only rarely seen alive by Japanese fishermen roams the northern Pacific Ocean, according to research published this week.
The annual Delta Aquarid meteor shower peaks overnight Thursday, and you can watch the event live via a special webcast by the online Slooh Community Observatory.
"Have a look at that dark purple blob on the left, there." With those words, scientists aboard the Exploration Vessel Nautilus uncovered a marine mystery: a small purple orb tucked halfway under a rock off the coast of California