Liquid water runs down canyons and crater walls over the summer months on Mars, according to researchers who say the discovery raises the chances of being home to some form of life.
The trickles leave long, dark stains on the Martian terrain that can reach hundreds of metres downhill in the warmer months, before they dry up in the autumn as surface temperatures drop.
Nasa scientists find evidence of flowing water on Mars
Supermassive black hole bigger than scientists thought was possible
Astronomers in England have discovered a supermassive black hole many times larger than should be possible.
In astrophysics, very few rules are hard and fast. There are mostly just loose parameters, theories and informed expectations -- expectations that are constantly being subverted by newly discovered phenomena.
Mini triceratops-like dinosaur could be new species
A team of Colorado researchers say there's nothing else like the dinosaur specimen they unearthed. Though it's yet to be given a scientific name, scientists dubbed the dino "Ava," due to its resemblance of triceratops relative Avaceratops.
The dinosaur's fossils were discovered at the Judith River Formation in Montana. They're dated at 75 million years old, placing the dino's heyday within the Campanian stage of the Late Cretaceous.
Scientists ‘Reeling’ From New Pluto Pics
As celestial bodies go, Pluto is far more surprising than anyone could have expected.
“Pluto is showing us a diversity of landforms and complexity of processes that rival anything we’ve seen in the solar system,” said New Horizons Principal Investigator Alan Stern, of the Southwest Research Institute (SwRI) in Boulder, Colorado, in the official Nasa announcement that also claimed scientists were ‘reeling’ from seeing the new pictures.
Bones in South African cave reveal new human relative
Scientists say they've discovered a new member of the human family tree, revealed by a huge trove of bones in a barely accessible, pitch-dark chamber of a cave in South Africa.
The creature shows a surprising mix of human-like and more primitive characteristics — some experts called it "bizarre" and "weird."
And the discovery presents some key mysteries: How old are the bones? And how did they get into that chamber, reachable only by a complicated pathway that includes squeezing through passages as narrow as about 7½ inches (17.8 centimeters)?
Hypervelocity stars travel across the Universe, perhaps with aliens in tow
The stillness of the night sky is deceiving. Because of the sheer vastness of space, stars appear unmoving like celestial fixtures. In actuality, though, they're zipping through the cosmos - some at ridiculously high speeds: thousands, and even tens of thousands of kilometres per second.
That's roughly 100,000 times faster than the speediest train and 1,000 times faster than the fastest spacecraft that's ever flown. That's fast enough for a few spins around Earth in the time it takes to put on your socks. The point is, that's fast.
Ion collider produces droplets of primordial goo
he Relativistic Heavy Ion Collider just spit out tiny droplets of a liquid researchers say resembles the seeds of the cosmos, a primordial goo created by the Big Bang, which existed only briefly before cooling into the matter that helped birth stars, galaxies and planets.
Scientists have reported seeing the tiny liquid droplets before, but this time, researchers got a better look at the production process.
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