Each week we uncover the most interesting and informative articles from around the world, here are 10 of the coolest stories in science this week.
Daring, Dangerous Rescue
A massive operation is underway to rescue 12 boys and their 25-year-old soccer coach who have been trapped for nearly two weeks in the Tham Luang cave system, with rain expected Sunday (July 8).
Whether the team could wait out the monsoon season, remaining holed up in the cave for months, is not clear. [Read more about the risks.]
Saving the Day
A pride of hungry lions in a South African reserve just saved the day, at least for a herd of rhinos. The poachers, who had illegally entered that reserve with a gun and axe to kill those rhinos, were not so lucky. [Read more about the event.]
A new optical-illusion study in the journal Science asks whether a series colorful dots is purple, blue or proof that humans are doomed to a lifetime of sadness and poor decisions. [Read more about the illusion.]
The first mission designed to hunt a meteorite that crashed into the ocean has now discovered what may be tiny fragments of the meteorite’s crust, researchers say.
The details the scientists had regarding the fall suggested the meteorite was unusually strong, Fries said. This knowledge, in combination with the fact the meteorite landed on a soft seafloor as opposed to dry land, suggested this ocean fall might yield large, relatively intact meteorites for scientists to study. [Read more about the meteorite.]
Links to the Past
More than 3 million years ago, our adult human ancestors were walking on two feet and didn’t have the option of a fashionable baby sling to carry their kids around in. Instead, Australopithecus afarensis toddlers had a special grasping toe that helped them hold on to their mothers and escape into the trees, reports a study published today (July 4) in Science Advances. [Read more about the digit.]
A Paradoxical Situation
A galaxy that is supposedly devoid of all dark matter might actually be full of it.
Scientists have suggested the existence of this bizarre matter to explain a just-as-bizarre phenomenon: Based on the light astronomers can see with their telescopes, the universe acts like there is much more mass, and therefore much more gravitational force, than Albert Einstein’s theories predict based on what we can see. [Read more about the galaxy.]
A woman who tried to hand-feed a shark is lucky she still has a hand. Yes, it bit her. IT’S A SHARK. [Read more about the dangers.]
Star Wars is Reality
The laser blasters in “Star Wars” are no longer a thing of science fiction. Chinese researchers have developed an actual laser gun that can ignite a target on fire from a half mile (800 meters) away, the South China Morning Post reported.
Although the gun is classified as a nonlethal weapon, its laser shots can cause “‘instant carbonization’ of human skin and tissues,” according to the South China Morning Post, which means skin would burn and be reduced to carbon like the outside of a charred marshmallow. It can also fire through windows, burn through gas tanks and ignite anything that’s flammable. [Read more about the gun.]
Guilt-Free Cup’o Joe
Coffee lovers may not have to feel that familiar pang of guilt when pouring themselves yet another cup of joe for the day.
In the study, published July 2 in the journal JAMA Internal Medicine, Loftfield and her team at the NCI analyzed data from nearly 500,000 people who took part in the U.K. Biobank study. That project gathered health information from more than 9 million people. [Read more about the possibilities.]
Hope on Enceladus
Large, carbon-rich organic molecules seem to be spewing from cracks on the surface of Saturn’s icy moon, Enceladus, according to a new study of data collected by NASA’s Cassini spacecraft. The discovery means that Enceladus is the only place besides Earth known to satisfy all the requirements for life as we know it, space scientist and study co-author Christopher Glein said in a statement from the Southwest Research Institute (SwRI) in San Antonio. [Read more about life in space.]