A medieval forerunner to the Great Wall of China was thought to have been designed to defend against the Mongol armies of Genghis Khan, but the first major study of this wall suggests it was built before he was born. The Great Wall of China is actually a collection of many walls. The 8850-kilometre stretch […] More
Mysterious cosmic bubbles are being seen in a new light. For the first time, scientists have observed visible light from the Fermi bubbles, enormous blobs of gas that sandwich the plane of the Milky Way galaxy. The newly spotted glow was emitted by hydrogen gas that was electrically charged, or ionized, within the bubbles. Astronomer […] More
Astronomers think they’ve spotted the first example of a superbright blast of radio waves, called a fast radio burst, originating within the Milky Way. Dozens of these bursts have been sighted in other galaxies — all too far away to see the celestial engines that power them (SN: 2/7/20). But the outburst in our own […] More
For some people, the symptoms of Lyme disease never go away after treatment. Now we have clues about why this happens, supporting the idea that “chronic Lyme” really does exist Health 3 June 2020 BARELY a summer day went by that I didn’t hear someone talking about Lyme disease. In the four years I lived […] More
Pangolins are the most illegally trafficked mammal. This image from a new photographic series features the efforts by conservationists to halt their decline before the creatures go extinct Humans 3 June 2020 PhotographerNeil Aldridge THIS curious creature is a pangolin, the only mammal that is covered in protective scales. This signature feature is why pangolins, […] More
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“CONGRATULATIONS to America – this has been an amazing two days,” NASA administrator Jim Bridenstine said on 31 May, as two astronauts arrived on the International Space Station. They had launched the day before, carried into orbit by a SpaceX Crew Dragon capsule. The launch was a major milestone for US space flight (see NASA […] More
Documentary Stalking Chernobyl meets the eclectic mix of people who keep visiting the site of world’s worst nuclear disaster. The film is a triumph, says Simon Ings Humans 3 June 2020 Stalking Chernobyl: Exploration after apocalypse Iara Lee Free on Vimeo and YouTube THE film festival circuit is frozen for lockdown, so how are independent […] More
