All Science
Why the world's last few snow leopards are dying at the hands of humansThe report estimates that between 221 and 450 snow leopards have been killed since 2008, but notes that the number could be higher since killings in remote areas go undetected and it is difficult to monitor the trade of big cats.
First LookDid the Viking rover actually discover signs of life on Mars in 1976?In 1976, NASA sent two probes, Viking 1 and Viking 2, to the Red Planet to test for signs of life. Two of the scientists now argue that their experiments' results should be reexamined in light of more recent tests.Â
First Look423-million-year-old fish fossil sheds light on evolution of animals' jawsQilinyu rostrata – a bottom-dwelling, armored fish that belongs a prehistoric class known as placoderms – had jaw bones that suggest placoderms played a key role in vertebrate evolution.Â
First LookMars lander falls silent: Has it been lost?Despite a less-than-ideal fate for the Schiaparelli lander, scientists at the European Space Agency are feeling positive: Space travel is supposed to be tricky, they say.Â
First LookEnormous dinosaur may be least scary thing to hail from AustraliaThe Australian dinosaur might descend from titanosaurs who trekked from South America through Antarctica, say paleontologists.Â
How did snakes lose their legs?Limb loss may seem like a major evolutionary change, but on the genetic level the change might have been subtle.
Scientists say they have found the oldest right-handed humanNew research suggests right-handedness in humans goes back at least 1.8 million years.
Is a mysterious Planet Nine creating a slight tilt in the solar system?Planet Nine has yet to be directly observed by scientists, but a new study from CalTech suggests it might be responsible for a 6 degree wobble in orbit of the other planets around the sun.- Two earthquake faults meet near San Francisco, could trigger next Big OneSeismologists have determined that the Hayward Fault and Rogers Creek Fault connect near San Francisco Bay and could potentially trigger a devastating earthquake.
- Does Pluto have clouds? NASA spacecraft reveals hazy layers.Data from NASA's New Horizons spacecraft suggests that Pluto has a complex atmosphere composed of multiple hazy layers.
- NASA Jupiter probe's software enters 'safe mode' just before flybyNASA's Juno spacecraft has gone into 'safe mode,' stopping it from gathering data just before its second close flyby of the gas giant.Â
Did that European Mars lander actually make it to the surface?Europe's Schiaparelli Mars lander entered the Red Planet's atmosphere on Wednesday, but mission engineers have not heard from the craft since then.
Despite deaths, here's why scientists still call cave diving 'critical'The death of two experienced cave divers highlights the perils faced by explorers. However, it's also a uniquely valuable way for scientists to study underwater systems.
Monkeys are making stone tools thought to be unique to humansStone flake production might not be all it is cracked up to be.
First LookChinese astronauts arrive at Chinese space stationTwo Chinese taikonauts made it safely to Tiangong-2 on Wednesday morning, marking a great success for China's growing space program. The astronauts are slated to spend a month on the station, the longest space lab mission yet for China's space agency.Â
First LookScientists – by accident – turn carbon dioxide into ethanol fuelResearchers have stumbled upon a way to turn carbon dioxide into ethanol, using spikey nanoparticles.
First LookAre those clouds scientists are seeing on Pluto?A team of researchers may have discovered clouds in data from the New Horizons probe. If so, the dwarf planet's weather is far more complex than previously thought.
First LookWhy the moon's Aldebaran occultation all that spookyLate Tuesday night, the star Aldebaran appeared to vanish, as the moon passed directly in front of it.- Chambers hidden in Great Pyramid of Giza? Not so fast, say scientists.A team of scientists have cast doubt on earlier claims that the Great Pyramid of Giza may contain unknown cavities.
- Russian Soyuz rocket lifts off carrying three astronauts to space stationA Russian Soyuz rocket is en route to the International Space Station with two Russian cosmonauts and one American astronaut.