The Hubble Space Telescope has shown that dark matter is concentrated in the core of a nearby dwarf galaxy, a discovery that comes to the aid of the Standard Model of Earth. cosmology. This model basically predicts that dark matter is “cold,” but recent findings seem to indicate that the substance is “warm.” However, these … Read more
The discovery of the Higgs boson has been a fascinating journey for physicists around the world, since the particle was first detected at the Large Hadron Collider (LHC) about twelve years ago. This monumental discovery, which confirms the existence of the elusive particle theorized nearly half a century earlier, has opened up new avenues for … Read more
C.Marsicano Gaiasia jennyaea newly discovered freshwater predator with a body length of 4.5 meters, lurked in the swamps and lakes about 280 million years ago. Its broad, flattened head had powerful jaws full of enormous fangs, ready to catch any prey that had the misfortune to swim by. The problem is that, as far as … Read more
A NASA astronaut has captured photographs from a window aboard the International Space Station (ISS) of eerie, glowing red lights hanging in Earth’s atmosphere. The stunning image, taken on June 3 by NASA’s SpaceX Crew-8 mission commander Matthew Dominick, captured the quick flash of a weather phenomenon known as “red sprite” lightning. Red sprites are … Read more
Detection of modern human-to-Neanderthal gene flow (H→N) and its consequences. Modern human-to-Neanderthal admixture causes a local increase in heterozygosity in the Neanderthal genome, a feature that enabled approaches to quantify and detect introgressed sequences. We used modern human-introgressed sequences in the Neanderthal genome to refine estimates of Neanderthal ancestry in contemporary humans by decomposing IBDmix-detected … Read more
Neanderthals may not have actually gone extinct, but they may have been absorbed into modern human populations. That’s one implication of a new study, which shows that modern human DNA may make up 2.5% to 3.7% of the Neanderthal genome. “This research underscores that what we consider a distinct Neanderthal lineage was actually more closely … Read more
Hundreds of thousands of years ago, our species emerged in Africa. Research into the DNA of living humans has shown that early Homo sapiens remained on the continent for a long time, with a small group leaving only 50,000 years ago to populate the rest of the world. However, these findings raise a puzzling question: … Read more
One of the challenges of working with ancient DNA samples is that damage accumulates over time, breaking the double-helix structure into smaller and smaller fragments. In the samples we have worked with, these fragments spread out and mix with contaminants, making reconstructing a genome a major technical challenge. But a dramatic paper published Thursday shows … Read more
If you look up at the sky for a while during the summer, you’ll probably see a few “shooting stars” streaking across the sky. The best meteor show of the summer occurs in the second week of August during the annual Perseid meteor shower, which, peaking around the nights of August 11th and 12th, is … Read more
Source: Pixabay/CC0 Public Domain Tachyons are hypothetical particles that travel at speeds greater than the speed of light. These superluminal particles are the “enfant terrible” of modern physics. Until recently, they were generally considered as entities that did not fit into special relativity. However, an article recently published in Physical assessment D by physicists from … Read more