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The universe is generally believed to be expanding at an accelerating rate, thanks to a mysterious force dubbed dark energy. But how exactly does this force work? Researchers in the UK have conducted an experiment to test a hypothesis that th… Continue reading Atomic experiment to detect dark energy fails to feel the force
Astronomers have detected a gravitational wave signal that appears to have been caused by a black hole swallowing a neutron star. Aside from being an incredible cosmic cataclysm to witness, this detection is important for another reason: it m… Continue reading Gravitational waves point to a black hole swallowing a neutron star
Few things are as mysterious as dark matter, the strange substance that appears to outnumber ordinary matter by a ratio of five to one. Now, a physicist from Johns Hopkins University has outlined a new theory that helps to explain the stuff b… Continue reading Did dark matter arise before the Big Bang?
When scientists need to learn about something, recreating it in the lab is often one of the best ways – and now that even applies to the Sun itself. Physicists from the University of Wisconsin-Madison have built a mini-Sun in the lab, and use… Continue reading Lab-made "Mini-Sun" sheds light on the real thing
[Hyna] has spent seven years working with electron microscopes and five years with 3D printers. Now the goal is to combine expertise from both realms into a metal 3D printer based on electron-beam melting (EBM). The concept is something of an all-in-one device that combines traits of an electron beam …read more
Gravitational waves are usually detected as they sweep across Earth after whatever cataclysmic event created them, but now astronomers have found a likely source before the waves become detectable. Using Caltech’s Zwicky Transient Facility (Z… Continue reading Binary white dwarfs are waltzing fast enough to distort spacetime itself
Dark matter is a mysterious substance that seems to permeate the universe, but detecting it is tricky on account of it not interacting with regular matter very often. Scientists have a list of particles that they’re working through as possible suspects, and now that list is a little shorter. Experiments at CERN have ruled out some types of dark photons, inching us closer to finding the elusive dark matter.
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Continue Reading CERN searches for “dark photons,” light’s hypothetical cousin that could unlock dark matter
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It can take huge equipment to detect the tiniest things, and that’s particularly true when it comes to gravitational waves. The LIGO detector uses 4-km-long (2.5-mi) arms to pick up distortions just a thousandth of the width of a proton. But … Continue reading Tabletop-sized gravitational wave detector could shed light on dark matter
Although it makes up about 85 percent of all matter in the universe, dark matter is frustratingly hard to pin down. In order to figure out what it is, much of the search is about ruling out what dark matter isn’t, and now physicists at Stanfo… Continue reading Stanford study suggests dark matter is lighter and more elusive than previously thought
If you have done any sort of radio work you probably have a fair idea about what antennas do. It is pretty easy to have a cursory understanding of them, too. You probably know there’s something magic about antennas that are a quarter wave long or a half wave long …read more