<p>Ancient water, poop in pools and the evolution of dogs and humans are in our coolest stories.</p> <p>Click on to see them all.</p>
Earth's oldest water found
<p></p><p> A pocket of water some 2.6 billion years old — the most ancient pocket of water known by far, older even than the dawn of multicellular life — has now been discovered in a mine 2 miles below the Earth's surface.</p>
<p> The finding, announced in the May 16 issue of the journal Nature, raises the tantalizing possibility that ancient life might be found deep underground not only within Earth, but in similar oases that may exist on Mars, the scientists who studied the water said.</p>
<p>[Full Story: <a href=http://www.livescience.com/32028-oldest-water-found-underground.html target="_blank">
Oldest Water on Earth Found Deep Underground</a>]</p>
Baby-making season revealed in ancient Egypt
<p> The peak period for baby-making sex in ancient Egypt was in July and August, when the weather was at its hottest.</p>
<p> Researchers made this discovery at a cemetery in the Dakhleh Oasis in Egypt whose burials date back around 1,800 years. The oasis is located about 450 miles (720 kilometers) southwest of Cairo. The people buried in the cemetery lived in the ancient town of Kellis, with a population of at least several thousand. These people lived at a time when the Roman Empire controlled Egypt, when Christianity was spreading but also when traditional Egyptian religious beliefs were still strong.
<p>[Full Story: <a href=http://www.livescience.com/32078-ancient-egypt-cemetery-reveals-sex-season.html target="_blank">Cemetery Reveals Baby-Making Season in Ancient Egypt</a>]</p>
Ewww! Poop in pools
<p> There's poop in public pools, according to a new report.</p>
<p> Researchers at the Centers for Disease Control and Prevention (CDC) found genetic material from <i>E. coli</i> bacteria in 58 percent of public pools they tested during the summer of 2012.
<p>[Full Story: <a href=http://www.livescience.com/32059-fecal-matter-public-pools-bacteria.html target="_blank">Poop Prevalent in Public Pools, CDC Says</a>]</p>
Cicadas continue East Coast march
<p> Cicada nymphs have been starting to crawl out of the ground in droves across the East Coast, and the highly anticipated emergence of the 17-year-old insects has been ramping up in the Mid-Atlantic in recent days.</p>
<p> Nymph sightings have been reported as far north as Connecticut, according to citizen science projects like Radiolab's Cicada Tracker and Magicicada. But farther south, some residents of Virginia are seeing adult cicadas by the hundreds. Sometimes these sightings have been accompanied with mating calls or a loud continuous chorus, according to the tracking maps.
<p>[Full Story: <a href=http://www.livescience.com/31933-cicadas-move-across-east-coast.html target="_blank">Cicadas Continue East Coast March</a>]</p>
A shifting North Pole
<p> The North Pole’s surprise trip toward Greenland is due to Earth's rapidly melting ice sheets, a new study finds.</p>
<p> The distribution of mass across the planet determines the position of Earth's poles. Because Earth is a bit egg-shaped, the North Pole is always slightly off-center. It's also been slowly drifting south, responding to long-term changes since the last Ice Age, as the enormous ice sheets that once covered large swaths of the planet melted and parts of the Earth rebounded from the lost weight.
<p>[Full Story: <a href=http://www.livescience.com/32036-north-pole-shifting-melting-ice.html target="_blank">North Pole Moves as Ice Sheets Melt</a>]</p>
Lost city possibly found
<p> New images of a possible lost city hidden by Honduran rain forests show what might be the building foundations and mounds of Ciudad Blanca, a never-confirmed legendary metropolis.</p>
<p> Archaeologists and filmmakers Steven Elkins and Bill Benenson announced last year that they had discovered possible ruins in Honduras' Mosquitia region using lidar, or light detection and ranging. Essentially, slow-flying planes send constant laser pulses groundward as they pass over the rain forest, imaging the topography below the thick forest canopy.
<p>[Full Story: <a href=http://www.livescience.com/32017-lost-city-honduras-images.html target="_blank">Ruins of Lost City May Lurk Deep in Honduras Rain Forest</a>]</p>
'Einstein's planet' found?
<p> Einstein's special relativity has proven more useful than ever, as scientists have now used it to discover an alien planet around another star. </p>
<p> The newfound world — nicknamed "Einstein's planet" by the astronomers who discovered it — is the latest of more than 800 planets known to exist beyond our solar system, and the first to be found through this method.
<p>[Full Story: <a href=http://www.livescience.com/32001-alien-planet-einstein-relativity.html target="_blank">'Einstein's Planet': New Alien World Revealed by Relativity</a>]</p>
Dogs & humans evolved together
<p> Dogs are more than man's best friend: They may be partners in humans' evolutionary journey, according to a new study.</p>
<p> The study shows that dogs split from gray wolves about 32,000 years ago, and that since then, domestic dogs' brains and digestive organs have evolved in ways very similar to the brains and organs of humans.
<p>[Full Story: <a href=http://www.livescience.com/31997-dogs-and-humans-evolved-together.html target="_blank">Dogs and Humans Evolved Together, Study Suggests</a>]</p>
Fear of missing out?
<p> Worried that everyone else is doing something cool without you? You may have FOMO — Fear of Missing Out. Even worse, a new study finds, you may be less satisfied with your life than the average person.</p>
<p> People high in FOMO, as the online acronym would have it, feel less competent, less autonomous and less connected with others than people who don't worry about being left out, according to the study published in the July issue of the journal Computers in Human Behavior.
<p>[Full Story: <a href=http://www.livescience.com/31985-fear-missing-out-dissatisfaction.html target="_blank">No More FOMO: Fear of Missing Out Linked to Dissatisfaction</a>]</p>
Could humans be cloned?
<p> The news that researchers have used cloning to make human embryos for the purpose of producing stem cells may have some people wondering if it would ever be possible to clone a person.</p>
<p> Although it would be unethical, experts say it is likely biologically possible to clone a human being. But even putting ethics aside, the sheer amount of resources needed to do it is a significant barrier.
<p>[Full Story: <a href=http://www.livescience.com/32083-cloning-people-biology.html target="_blank">Could Humans Be Cloned?</a>]</p>