Daniel Asa Williams

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Martian meteorite yields more evidence of the possibility of life on Mars

The finding of a ‘cell-like’ structure, which investigators now know once held water, came about as a result of collaboration between scientists in …

UK Universities

Discovery! First Water Ice Clouds Found Beyond Our Solar System

For the first time, astronomers have detected water ice clouds, like the ones that shroud Earth, around a dim celestial body outside of our solar …

This May Be the Oldest Known Sign of Life on Earth

Found embedded in crystal, the structures seem to be fossils formed around hydrothermal vents as much as 4.28 billion years ago.<p>Stalks of iron-rich minerals, each a fraction the size of an eyelash, may be evidence of the earliest life-forms to inhabit the newborn planet Earth. The tiny hematite …

Here's Our Best Look Yet at Saturn's 'UFO' Moon

Adorned with a thin band of icy ring particles, the small moon Pan inspires comparisons to alien spacecraft, walnuts, and even ravioli.<p>There’s a tiny “flying saucer” orbiting deep within Saturn’s rings, and a NASA probe has just gotten its most impressive look yet at the strange object.<p>The saucer …

Secret Crime-Fighter Revealed to Be 1930s Physicist

Nine recently unearthed notebooks record the true scope of work done by the mysterious forensics pioneer called "Detective X."<p>For Kristen Frederick-Frost, it all began in the basement of a government science building.<p>In 2014, the curator was searching the archives of the National Institute of …

7 Alien 'Earths' May Be Swapping Life via Meteorites

Tiny life-forms can move easily between these recently described planets, according to a study of the travel times between worlds.<p>The discovery of alien life would be revolutionary. But what if we uncovered it on two—or even seven—planets all orbiting the same star?<p>That’s the tantalizing …

Humans 'Domesticated' Mice 15,000 Years Ago

Ancient rodent populations may now help us fill in gaps in the archaeological record as humans shifted from hunter-gatherers to farmers.<p>Most people are all too familiar with house mice. We know them as the eaters of crumbs, gnawers of cords, and leavers of droppings. They create the pitter-patters …

Mesmerizing Photos Reveal Hidden World of Underwater Caves

Dye experiments and a 360-degree tour are helping Floridians understand their water supply.<p>Where does my drinking water come from? You probably aren’t asking yourself this question on a daily basis. Maybe it has never crossed your mind. But for National Geographic Young Explorer Jennifer Adler, …

Jupiter Looms Large and 9 More Can’t-Miss Sky Events in April

This month, see the moon join up with constellations and planets and Jupiter at its brightest.<p>The smallest and largest and planets in the solar system put on their best sky shows this month, the moon makes a host of stunning celestial visits with neighboring worlds, and a meteor shower lights up …

Cannibalism Study Finds People Are Not That Nutritious

While our ancient ancestors did practice cannibalism, eating other humans just couldn’t compare with taking down a mammoth.<p>Note to the prehistoric party planner: One dead mammoth can feed 25 hungry Neanderthals for a month, but cannibalizing a human would provide the crowd with only a third of a …

Why the North Pond Hermit Hid From People for 27 Years

Christopher Knight did not have a conversation with another person for almost three decades—but he committed roughly a thousand burglaries.<p>In 1986, 20-year-old Christopher Knight left his home in Massachusetts, drove to Maine, and disappeared into the woods. Living in a tent in impenetrable forest, …

Warming Bleaches Two-Thirds of Great Barrier Reef

A huge portion of the 1,400-mile structure has now suffered severe damage for the second straight year–and scientists blame climate change.<p>The largest living structure on Earth—an intricate marine system half the size of France, which nurtures 1,500 species of fish—is under attack by warm water for …