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Posts Tagged ‘tweet’

600 million-year-old fossils reveal catastrophic oxygen loss on ancient Earth [Evolution]

17 Feb
635 million years ago, almost the entire planet was a frozen ball of ice. And yet mere tens of millions of years later a population explosion happened deep underwater in South China, preceding the better-known Cambrian explosion by a significant time period. In these oxygen-free waters, more than 3,000 fossils of 15 species of seaweeds and worms lived briefly, and then all died suddenly. More »
 
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We may be even more alone in the universe than we thought [Evolution]

22 Oct
Two scientists propose that the jump from bacteria to complex life might be much riskier than previously imagined. Even on planets with earthlike conditions, plant and animal life would therefore be incredibly rare. More »
 
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Extreme black holes billions of years ago overheated the universe [Mad Astrophysics]

08 Oct
Global warming really isn't just a local problem...universal warming ran through the universe 11 billion years ago, doubling the temperature of intergalactic helium. The cosmic temperature spike was so bad, it stopped galaxies from developing for 500 million years. More »
 
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Devastating volcanoes wiped out the Neanderthals [Mad Archaeology]

07 Oct
The ultimate fate of the Neanderthals remains a major mystery. We know they went extinct, but why did they die out when our ancestors thrived? New evidence suggests massive, deadly volcanoes killed off the Neanderthals while completely sparing our ancestors. More »
 
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We won’t reach Alpha Centauri until the 24th century…unless we have an energy breakthrough [Mad Science]

27 Sep
If you take humanity's current energy and technological capacity and project a steady increase into the future, the chances of us reaching the stars any time soon look bleak. Even our nearest stellar neighbor is at least 300 years away. More »
 
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A toothpaste-like gel that can heal wounds six times faster than normal [Medical Breakthroughs]

13 Aug
A gene therapy in the form of a thick gel is about to revolutionize wound treatment. The gel is called Nexagon, and when you apply it to a wound, it reprograms the cells to heal more quickly and efficiently. More »
 
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A toothpaste-like gel that can heal wounds six times faster than normal [Medical Breakthroughs]

13 Aug
A gene therapy in the form of a thick gel is about to revolutionize wound treatment. The gel is called Nexagon, and when you apply it to a wound, it reprograms the cells to heal more quickly and efficiently. More »
 
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Got a plan to get us back to the Moon? NASA’s got $30 million worth of motivation! [Commercial Spaceflight]

08 Aug
In the clearest indication yet that the future of space exploration lies as much in the private sector as government agencies, NASA announced it's offering $30.1 million for the first commercial group to land a probe on the Moon. More »
 
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Triceratops controversy shakes paleontology to its bones [Mad Paleontology]

06 Aug
Paleontologists have discovered a shocking fact about the relationship between the celebrated Triceratops dinosaur (left) and its less-glamorous, holey-headed counterpart, Torosaurus (right). Turns out they're not evolutionary cousins. In fact, Triceratops is just a younger version of Torosaurus. More »
 
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Humans’ treatment of other animals shaped our evolution [Evolution]

22 Jul
Humans are one of the few animals that adopts and cares for other animals. Our cross-species connections might be older and more important than we ever imagined, driving human evolution for millions of years and even helping us invent language. More »
 
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