العلوم والبيئة
Tiny ancient black holes may live in a five-dimensional world
المصدر: Phys.org - latest science and technology news stories · نُشر
Primordial black holes (PBHs) don't exist as far as we know. But if they did, these hypothetical objects would have formed in the early universe rather than from dying stars, and they may even make up dark matter. That's not the end of the weirdness. Their formation could have be
Primordial black holes (PBHs) don't exist as far as we know. But if they did, these hypothetical objects would have formed in the early universe rather than from dying stars, and they may even make up dark matter. That's not the end of the weirdness.
Their formation could have been even stranger if it occurred in a universe with a dark dimension, which is another theoretical construct. It posits that our space includes a hidden extra spatial dimension.
أخبار ذات صلة
Black hole jets may decide the fate of entire galaxies
Powerful jets from supermassive black holes can disturb star-forming gas far beyond a galaxy’s visible edge, leaving a glowing trail hundreds of thousands of light-years long. By keeping this gas hot and preventing it from falling inward, the jets may help determine whether a gal
All Top News -- ScienceDaily ·
Scientists find a surprising clue to why the universe’s expansion doesn’t add up
Tiny magnetic fields created shortly after the Big Bang may help explain the long-running disagreement over how fast the universe is expanding. Detailed simulations show that these primordial fields could have changed the formation of hydrogen in the early universe, affecting the
All Top News -- ScienceDaily ·
One tiny chemical difference between RNA and DNA may help explain how life began
Scientists may have found a clue to one of the biggest mysteries surrounding the origin of life: how fragile RNA molecules could gather and survive before cells existed. New research shows that RNA is unusually good at assembling into tiny liquid-like droplets that concentrate mo
All Top News -- ScienceDaily ·
Tiny image sparks big backlash in Nikon photo contest
Dr Ning Xu denies he broke the rules of Nikon's annual Small World In Motion contest.
feeds.bbci.co.uk ·
Waste plastic yields carbon quantum dots with emissions tunable from UV to yellow-green
Carbon quantum dots (CQDs) are fluorescent carbon nanomaterials with potential applications in sensing, optoelectronics, displays, anticounterfeiting and environmental technologies. Their optical properties can be adjusted by modifying the carbon structure and surface chemistry,
Phys.org - latest science and technology news stories ·