Was the Earth showered with radioactive debris from a series of massive supernova explosions between 3.2 and 1.7 million years ago? Scientists say the evidence suggests the answer is yes! The team of scientists believes the evidence they have discovered proves that a series of massive supernova explosions near our solar system would have rained ...
The idea that the size of populations determines their ability to develop complex cultures has been a growing consensus among archaeologists and anthropologists. The logic behind this consensus seems to be sound; however, a new study says it is severely flawed. So using this model, the larger the population is, the higher the probability it ...
As you watch Eelume move its long black body underwater with its glowing eyes, nobody would think differently of you if you were a little unnerved — but don’t worry, it’s just a robot. The robot is a self-propelled aquatic mechanical snake designed for inspection work and basic repair jobs on the seafloor. Eelume developed the ...
The ability for humans to survive long-term space travel is now in doubt after mice returned from a 13.5-day ride on the final Atlantis space shuttle flight. The mice were found to have returned with early signs of liver damage. Scientists at the University of Colorado Anschutz Medical Campus examined the livers of the mice ...
Ever since the book Moby-Dick was published in 1851, people have debated whether a sperm whale could actually sink ships using its colossal head as a battering ram. An international team of researchers, led by Dr. Olga Panagiotopoulou from the University of Queensland, has been researching this very theory. In their research, published in PeerJ, the biological and medical sciences ...
Just days after a 2020 magnitude 5.1 earthquake in Tangshan, China, researchers turned nearly 8 kilometers of unused telecom fiber optic cable, known as “dark fiber,” into a seismic array that detected dozens of aftershocks that were missed by permanent seismic stations. The rapid deployment of the distributed acoustic sensing (DAS) technology doubled the total ...
For years, amateur aurora watchers from Canada have noticed mysterious streaks of pale purple and green light that seemed to dance across the nighttime sky. But it wasn’t until 2016 that they shared their colorful images with scientists, who soon identified the light show as a new type of upper-atmosphere phenomenon that was jokingly named ...
On April 28, 2021, at 0933 UT (3:33 a.m. Eastern Daylight Time), NASA’s Parker Solar Probe reached the Sun’s extended solar atmosphere, known as the corona, and spent five hours there. The spacecraft is the first to enter the outer boundaries of our Sun. The results, published in Physical Review Letters, were announced at a press conference ...
Now is the best time to get a glimpse of Comet C/2021 A1, better known as Comet Leonard. It’s named for its discoverer, Gregory Leonard, a senior research specialist at the University of Arizona Lunar and Planetary Laboratory. Every night with clear skies, astronomers with LPL’s Catalina Sky Survey scan the sky for near-Earth asteroids ...
Krypton from the Earth’s mantle, collected from geologic hot spots in Iceland and the Galapagos Islands, reveals a clearer picture of how our planet formed, according to new research from the University of California, Davis. The different isotopes of krypton are chemical fingerprints for scientists sleuthing out the ingredients that made the Earth, such as ...
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