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“Heirloom” Pop-Up Art Book by Alison Ann Woodward unfolds piece by piece to reveal the anatomy of a white horned creature.
Above the California Desert (by Brad Gillette) The salt crust is colored red by dense colonies of halophilic archaebacteria.
Violent Birth of Supernovae |
A team of astronomers led by the University of Leicester has uncovered new evidence that suggests that X-ray detectors in space could be the first to witness new supernovae that signal the death of massive stars.
Astronomers have measured an excess of X-ray radiation in the first few minutes of collapsing massive stars, which may be the signature of the supernova shock wave first escaping from the star.
The findings have come as a surprise to Dr Rhaana Starling, of the University of Leicester Department of Physics and Astronomy whose research is published in the Monthly Notices of the Royal Astronomical Society.
Dr Starling said: “The most massive stars can be tens to a hundred times larger than the Sun. When one of these giants runs out of hydrogen gas it collapses catastrophically and explodes as a supernova, blowing off its outer layers which enrich the Universe. But this is no ordinary supernova; in the explosion narrowly confined streams of material are forced out of the poles of the star at almost the speed of light. These so-called relativistic jets give rise to brief flashes of energetic gamma-radiation called gamma-ray bursts, which are picked up by monitoring instruments in Space, that in turn alert astronomers.”
Gamma-ray bursts are known to arise in stellar deaths because coincident supernovae are seen with ground-based optical telescopes about ten to twenty days after the high energy flash. The true moment of birth of a supernova, when the star’s surface reacts to the core collapse, often termed the supernova shock breakout, is missed. Only the most energetic supernovae go hand-in-hand with gamma-ray bursts, but for this sub-class it may be possible to identify X-ray emission signatures of the supernova in its infancy. If the supernova could be detected earlier, by using the X-ray early warning system, astronomers could monitor the event as it happens and pinpoint the drivers behind one of the most violent events in our Universe. continue reading
Lipstick!
Thierry Mugler Haute Couture S/S 1999
By Tessa Farmer, simply stunning and magical tiny sculptures, each almost too small to have been crafted by a human, they simply have to be real fairies. Made from desiccated insect remains and other organic materials, poised in battle with a garden beastie, each around 1cm tall.
“Exchanging Victorian romanticism for the darker pragmatism of science, Farmer evidences her specimens as fearsome skeletal fiends, plausible “hell’s angels” of a microscopic apocalypse.”
By Andrey Lili