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News & Articles By Edsel Cook
09/01/2019
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By Edsel Cook
Cosmic superbubbles discovered in nearby galaxy act like particle accelerators
Long ago, in a galaxy far, far away, its central supermassive black hole produced a pair of tremendous cavities filled with gas and charged particles. The X-rays from those “superbubbles” eventually registered on the sensors of a NASA-run spacecraft and ground-based observatory. The Chandra X-ray space observatory and its ground-based counterpart, the Karl G. Jansky […]
08/31/2019
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By Edsel Cook
Fascinating spy plane photos from the 1950s and 60s reveal hidden archaeological spots in Aleppo, Jordan and Nimrud
The still-raging Syrian Civil War wrecked much of the ancient city of Aleppo. However, it lives on in declassified photographs taken by American spy planes during the early decades of the Cold War. The CIA recently released black-and-white images taken by a U-2 recon aircraft that flew over Middle Eastern countries during the 1950s and 1960s. In […]
08/31/2019
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By Edsel Cook
Can life find a way? Tiny planet around a white dwarf may hold clues to understanding habitable worlds in the universe
The star called SDSS J122859.93+104032.9 died long ago, and its death spasms devoured the planets that circled it. But U.K. researchers recently found a surviving planetesimal zipping through the diminishing debris disk around the white dwarf star. A fragment that broke off its original exoplanet during the latter’s destruction, the planetesimal showed high levels of […]
08/27/2019
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By Edsel Cook
Hiding in plain sight: Peacocks’ brightly colored feathers could be camouflage that hides them from predators, suggests study
The words “peacock” and “camouflage” are generally considered opposites. But Pennsylvania-based researchers now argue that the vivid colors of the flightless bird conceal it from predatory mammals. To the human eye, the tail feathers of the male peacock stand out like a visual sore thumb. However, it so happens that the retina of the human […]
08/25/2019
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By Edsel Cook
If Mars has methane, does it mean there’s life on the red planet?
A recent study by European researchers strengthened the case for seasonal spikes of methane in Mars. First discovered by NASA’s Curiosity rover in 2013, the latest methane spikes were confirmed by orbiting spacecraft. In 2019, Curiosity discovered that the methane levels in the Martian atmosphere changed from season to season. The gas hit its peak during the […]
08/25/2019
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By Edsel Cook
Biodegradable “transparent” timber works just as well as glass in windows
Swedish researchers fiddled with wood until they managed to turn it technically transparent. They also made the biodegradable material capable of absorbing heat from sunlight and releasing it during colder periods. If used in the windows of buildings, the revolutionary material might help save energy by reducing the need for artificial heating and cooling. It […]
08/25/2019
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By Edsel Cook
Stellar flybys can, in fact, reshape planetary systems – just look at this planet that was ejected from its orbit
Several million years ago, a binary star might have zipped past another pair of younger stars, thereby disrupting the orbit of a newly formed planet in the latter system. The researchers who made this astonishing discovery thought that this ancient stellar flyby might help explain the weirder parts in our solar system. Earlier efforts to […]
08/25/2019
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By Edsel Cook
“Tree kill zone” in Yellowstone National Park hints at new magma activity below the surface
The massive amounts of magma slumbering beneath Yellowstone National Park stir anew. Researchers reported the appearance of a new thermal area in the park that killed off the plants in its vicinity. The area measured eight acres (3.2 hectares), enough to fit four soccer fields. It first appeared on infrared images taken by Landsat satellites […]
08/25/2019
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By Edsel Cook
Scientists develop liquid that changes color with heat
Thermochromic materials are “smart” materials that change their color depending on the temperature of their surroundings. Recently, a Singaporean research team presented a liquid that grew much darker as it got hotter. Their invention might prove useful in smart windows and other applications that respond to temperature changes. Unlike earlier examples that relied on dyes […]
08/25/2019
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By Edsel Cook
When galaxies collide, the resulting black hole is often kicked out of the galaxy
What happens when two galaxies that contain supermassive black holes come crashing together? Research indicates that the tremendous energies of the collision might shove the resulting celestial body away from the center of its newly merged home galaxy. The recently formed black hole might even end up cast out of the system. Black holes are […]
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