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Updated: 3 weeks 27 min ago

Lasers Could Solve the Space Junk Problem

11 February 2018 - 12:29pm
Megan Ray Nichols, RCScience
If you gaze up at the night sky, you expect to see stars, meteors, and maybe a couple of satellites. What you can't see with the naked eye is the tons and tons of space junk currently orbiting our planet. It's estimated that there are more than 20,000 pieces of debris larger than a softball currently in orbit, and half a million pieces so small they can't be tracked.
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Earth's Inner Core Shouldn't Technically Exist

11 February 2018 - 12:29pm
Brandon Specktor, Live Science
One day, about a billion years ago, Earth's inner core had a growth spurt. The molten ball of liquid metal at the center of our planet rapidly crystallized due to lowering temperatures, growing steadily outward until it reached the roughly 760-mile (1,220 kilometers) diameter to which it's thought to extend today.
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Meet Science's Pirate Queen

11 February 2018 - 12:28pm
Ian Graber-Stiehl, The Verge
In cramped quarters at Russia's Higher School of Economics, shared by four students and a cat, sat a server with 13 hard drives. The server hosted Sci-Hub, a website with over 64 million academic papers available for free to anybody in the world. It was the reason that, one day in June 2015, Alexandra Elbakyan, the student and programmer with a futurist streak and a love for neuroscience blogs, opened her email to a message from the world's largest publisher: YOU HAVE BEEN SUED.
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Commonly-Used PTSD Drug Fails Rigorous Trial

10 February 2018 - 12:33am
Andrew Joseph, Stat
TThousands of people with post-traumatic stress disorder have taken the drug prazosin to ease the nightmares and disturbances that stalk their sleep.Numerous studies have shown the drug to be effective at controlling those episodes. But a team of researchers from the Department of Veterans Affairs, seeking to collect more evidence, set out to study the sustained effectiveness of the treatment.
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Is the Universe a Conscious Mind?

10 February 2018 - 12:33am
Philip Goff, Aeon Magazine
In the past 40 or so years, a strange fact about our Universe gradually made itself known to scientists: the laws of physics, and the initial conditions of our Universe, are fine-tuned for the possibility of life. It turns out that, for life to be possible, the numbers in basic physics for example, the strength of gravity, or the mass of the electron must have values falling in a certain range.
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Scientists Mimic Black Hole Effect on Electrons

10 February 2018 - 12:33am
Josh Gabbatiss, The Independent
Using a laser beam one quadrillion times brighter than the Sun, physicists have stopped electrons travelling at near-light speeds for the first time.The experiment produced a quantum mechanical phenomenon that was previously only thought to occur around black holes and quasars.
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Primitive Fish Illuminates Origin of Walking

10 February 2018 - 12:33am
Giorgia Guglielmi, Nature News
The genes and nerve cells that allow people and other mammals to walk around can also be found in a primitive fish known as a skate, according to a study. The findings suggest that the nerve cells essential for walking evolved millions of years earlier than previously thought.
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Did a Comet Kill the Mammoths?

10 February 2018 - 12:32am
Steven Novella, Neurologica
Between 12,800 to 11,500 bp (before present) there was a cold period in North America called the Younger Dryas named after the dryas flower whose pollen is a good marker for such cold periods. During this time the megafauna of North America, including the Mammoth, largely died out. Along with them went the Clovis culture a big game hunting culture with distinctive stone points.
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