Spirals, ellipticals, and irregulars are all more common than ring galaxies. At last, we know how these ultra-rare objects are made.
Old sunspot region AR 13,664, now renamed AR 13,697, is back. With its re-arrival, can we expect a resurgence of solar activity?
13K likes, — tylerthrasherart on March 31, 2024: ‘This color is killing flies and saving lives. A blue fabric with a reflectivity set at 460nm lures in the tsetse fly that mistakes the blue…’
They calculated stellar populations without and with the presence of dark matter. With dark matter, more massive stars experienced a lower dark matter density, and hydrogen in their core fused more slowly and their evolution was slowed down. But stars in a higher dark matter density region were changed significantly—they maintained equilibrium through dark matter burning with less fusion or no fusion, which led to a new stellar population in an HR region above the main sequence.
“Our simulations show that stars can survive on dark matter as a fuel alone,” said lead co-author Isabelle John from Stockholm University, “and because there is an extremely large amount of dark matter near the Galactic Center, these stars become immortal,” staying forever young, occupying a new, distinct, observable region of the HR diagram.
Their dark matter model may be able to explain more of the known mysteries. “For lighter stars, we see in our simulations that they become very puffy and might even lose parts of their outer layers,” said John. She noted that “something similar to this might be observed at the Galactic Center: the so-called G-objects, which might be star-like, but with a gas cloud around them.”
The neurotransmitter dopamine has often been linked to pleasure-seeking behaviors and making stimuli paired with rewards (e.g., food, drinks) valuable. Nonetheless, the processes through which this key chemical messenger contributes to learning have not yet been fully elucidated.
Analysis of two major cosmic blasts deepens the mystery of where the universe’s ‘heavy’ elements come from.
Black hat hackers have reportedly unleashed malicious software targeting over 1,500 banks and their customers worldwide.
Security researchers at IBM say a revamped version of the Grandoreiro banking trojan has just rolled out, enabling attackers to perform banking fraud in 60 countries.
The malware allows attackers to send email notices that appear to be urgent government requests for payments.
June’s astronomical events include a beautiful crescent moon, noctilucent clouds, the summer solstice, the first full moon of summer, and a giant rocket launch.
The higher number of electrodes allows more data to be transmitted to and from the brain, impacting the interface system’s capabilities.
Precision Neuroscience has set a new world record by implanting 4,096 electrodes in a human brain, surpassing Neuralink.
Directed with clinical precision by Academy Award winner Robert Wise, this compelling account of the earth’s first biological crisis is perhaps the most chillingly realistic science fiction thriller ever made. After an errant satellite crashes on Earth near a remote New Mexico village, the recovery team discovers that almost everyone in the town are victims of a horrible death, with the mysterious exception of an infant and an old homeless man. The survivors are brought to a state-of-the-art laboratory descending five stories beneath the ground where the puzzled scientists race against time to determine the nature of the deadly microbe before it wreaks worldwide havoc. A trailblazer in the areas of special effects and inventive sets, The Andromeda Strain is based on Michael Crichton’s best-selling novel that created national paranoia for its topical relevance to the first moon landing.
