If dark matter is made from WIMPs, they should be all around us, invisible and barely detectable. So why haven’t we found any yet? While they wouldn’t interact with ordinary matter very much, there is always some slight chance that a dark-matter particle could hit a normal particle like a proton or electron as it …
Daily Archives: June 4, 2019
Today’s Discussion:What’s Dark Matter Web
In the 1930s, a Swiss astronomer named Fritz Zwicky noticed that galaxies in a distant cluster were orbiting one another much faster than they should have been given the amount of visible mass they had. He proposed than an unseen substance, which he called dark matter, might be tugging gravitationally on these galaxies. Since then, …
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It Could Be Thousands of Years Before Physicists Devise a Theory of Everything
In 1925, Einstein went on a walk with a young student named Esther Salaman. As they wandered, he shared his core guiding intellectual principle: “I want to know how God created this world. I’m not interested in this or that phenomenon, in the spectrum of this or that element. I want to know His thoughts; the rest …
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More Than 70 Gray Whales Dead in 6 Months, and Scientists Don’t Understand Why
Since January, more than 70 dead gray whales have washed up on the coasts of California, Oregon, Washington, Alaska and Canada. That’s the most in a single year since 2000, and scientists are concerned.Advertisement Last week, the National Oceanic and Atmospheric Administration (NOAA) Fisheries designated these strandings as part of an Unusual Mortality Event (UME). Under the …
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Earth’s Oldest Meteorite Collection Just Found in the Driest Place on the Planet
Meteorites crash into Earth pretty much constantly, and you can find their ancient remains everywhere from King Tut’s tomb to some guy’s farm in Edmore, Michigan. But to best understand where these space rocks came from and how long they’ve been living as earthly expats, it helps to visit the densest collection of meteorites on the planet — and …
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There Are Still 10 Chernobyl-Style Reactors Operating Across Russia. How Do We Know They’re Safe?There Are Still 10 Chernobyl-Style Reactors Operating Across Russia. How Do We Know They’re Safe?
In the new HBO miniseries “Chernobyl,” Russian scientists uncover the reason for an explosion in Reactor 4 at the Chernobyl Nuclear Power Plant, which spewed radioactive material across northern Europe. That reactor, a design called the RBMK-1000, was discovered to be fundamentally flawed after the Chernobyl accident. And yet there are still 10 of the same …
No, That Baby Dinosaur Didn’t Crawl. But It Did Walk on 4 Legs As an Infant.
Just like a human, a Jurassic-period dinosaur used all four limbs to get around as an infant. But later, it switched to two legs. The quadrupedal to bipedal switch made by this sauropodomorph — a type of herbivorous, long-necked and long-tailed dinosaur — appears to be unique among the animal kingdom.Advertisement “We cannot find any living animals, …
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The Sci-Fi 