Proposed dark matter detector watches a billion tiny pendulums swing

Despite hunting for it for decades, scientists have so far been unable to detect any definitive signs of dark matter. But a new detector design, using an array of billions of tiny pendulums, could finally break the silence by searching for the effects … Continue reading Proposed dark matter detector watches a billion tiny pendulums swing

Shortest event ever measured lasts mere sextillionths of a second

Physicists in Germany have measured the shortest timespan ever recorded. The team measured the time it takes for a photon of light to travel the length of a hydrogen molecule, and found it to occur in just trillionths of a billionth of a second.Continu… Continue reading Shortest event ever measured lasts mere sextillionths of a second

Duality of Light Explored by Revisiting the Double-Slit Experiment

We’ve all seen recreations of the famous double-slit experiment, which showed that light can behave both as a wave and as a particle. Or rather, it’s likely that what we’ve seen is the results of the double-slit experiment, that barcode-looking pattern of light and dark stripes, accompanied by some handwaving …read more

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Andrea Ghez Gazes into Our Galaxy’s Black Hole

Decades ago, Einstein predicted the existence of something he didn’t believe in — black holes. Ever since then, people have been trying to get a glimpse of these collapsed stars that represent the limits of our understanding of physics.

For the last 25 years, Andrea Ghez has had her sights …read more

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Maximum speed of sound calculated at 100 times faster than through air

When we talk about the speed of sound, we usually mean how fast it moves through air. But it can travel much faster through other media, and now scientists at the University of Cambridge and Queen Mary University of London have identified the absolute … Continue reading Maximum speed of sound calculated at 100 times faster than through air

2020 Nobel Prize in Physics awarded to black hole science pioneers

The 2020 Nobel Prize in Physics has been awarded to three astrophysicists who made huge contributions towards our understanding of black holes. One half was presented to Roger Penrose for his proof that black holes result from general relativity, while… Continue reading 2020 Nobel Prize in Physics awarded to black hole science pioneers

Weigh Your Car With Paper

Sometimes a problem is more important than its solution. Humans love to solve mysteries and answer questions, but the most rewarding issues are the ones we find ourselves. Take [Surjan Singh], who wanted to see if he could calculate the weight of his Saab 96. Funny enough, he doesn’t have …read more

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Scientists calculate how much matter there is in the universe

Scientists have now estimated the total amount of matter in the universe, using a new, more precise method. By calculating the mass of hundreds of galaxy clusters, the team found that matter makes up less than a third of the contents of the universe.Co… Continue reading Scientists calculate how much matter there is in the universe

Strangely light galaxies could imply new model for dark matter

Most of the mass in any given galaxy is invisible, made up of stuff we call dark matter. But in recent years astronomers made the puzzling discovery of two bizarre galaxies with almost no dark matter. Now, a new study has suggested an explanation for t… Continue reading Strangely light galaxies could imply new model for dark matter

Exotic objects made of dark energy could be pushing the universe apart

The universe is expanding, and that expansion is accelerating, but exactly why and how that’s happening remains unknown. One hypothesis suggests that this expansion is driven by mysterious, black hole-like objects made of dark energy, and now astrophys… Continue reading Exotic objects made of dark energy could be pushing the universe apart