Scientists calculate how much information exists in the observable universe
A theoretical calculation estimates roughly 6 × 10⁸⁰ bits of information in selected ordinary-matter particles across the observable…
Five-dimensional black holes offer a possible explanation for dark matter and neutrinos
A theoretical study predicts five-dimensional primordial black holes within a model containing a hidden extra spatial dimension.Some modeled…
Amateur astronomer leads scientists to a massive 390-million-year-old impact crater in Quebec
A circular feature first noticed by an amateur astronomer planning a camping trip in Quebec has turned out…
CERN recreates cosmic ray collisions to reveal what happens when space particles hit Earth
Physicists at CERN have directly measured proton-oxygen collisions at 9.62 TeV per nucleon pair, closely recreating an important…
Astronomers confirm Einstein’s gravity by viewing light from behind a supermassive black hole
Astronomers detected delayed X-ray flashes consistent with light reflected from the far side of an accretion disk and…
The universe may contain a staggering 40 quintillion black holes
Astronomers estimate that about 40 quintillion stellar-mass black holes exist within the observable universe, a number written as…
‘Cosmic Glitch’ could explain why gravity acts differently across the Universe
Einstein’s theory of gravity may behave slightly differently across distances of billions of light-years, with gravity appearing about…
Cosmic plasma was supposed to rule out dark photons. Simulations say otherwise
A major limit on dark photon dark matter may be far weaker because early-universe plasma stops absorbing energy…
The Milky Way glows brightly in first-of-its-kind neutrino image
IceCube has produced the first neutrino image of the Milky Way, revealing high-energy particle activity concentrated along our…
Scientists discover remnants of Theia, the planet that collided with Earth 4.5 billion years ago
Two continent-sized structures deep inside Earth may contain remnants of Theia, the ancient planet thought to have collided…
A beam of light can cross the entire universe in no time at all
A photon can cross a billion light-years while accumulating no elapsed time along its path.Special relativity links space…
Meteorite 200x larger than the dinosaur killer reshaped the course of evolution on Earth
A meteorite 50 to 200 times more massive than the one linked to the dinosaurs struck Earth 3.26…