Sunday, August 31, 2025

NASA’s x-ray telescope finds bizarre features in a cosmic hand

Astronomers have taken a fresh look at the famous “Hand of God” pulsar, combining X-ray data from NASA’s Chandra Observatory with new radio observations from the Australia Telescope Compact Array. At the center is pulsar B1509-58, a rapidly spinning neutron star only about 12 miles wide that powers a nebula stretching 150 light-years across. The strange hand-shaped structure continues to surprise researchers, revealing puzzling filaments, patchy remnants, and boundaries that defy expectations.

from Latest Science News -- ScienceDaily https://ift.tt/SIUno5a

Beet juice secretly helps older adults lower blood pressure in just two weeks

Drinking nitrate-rich beetroot juice lowered blood pressure in older adults by reshaping their oral microbiome, according to researchers at the University of Exeter. The study found that beneficial bacteria increased while harmful ones decreased, leading to better conversion of dietary nitrates into nitric oxide—a molecule vital for vascular health.

from Top Health News -- ScienceDaily https://ift.tt/dF89C3s

Saturday, August 30, 2025

Astronomers stunned as James Webb finds a planet nursery flooded with carbon dioxide

Astronomers using the James Webb Space Telescope have uncovered a planet-forming disk shockingly rich in carbon dioxide but nearly devoid of water, upending traditional theories of planetary chemistry. Found in a harsh star-forming region flooded with radiation, the discovery hints that cosmic environments may drastically reshape the ingredients that shape planets. The unexpected isotopic fingerprints of CO2 could even help solve mysteries about the origins of meteorites and comets in our own Solar System.

from Latest Science News -- ScienceDaily https://ift.tt/C5uLyfM

Scientists uncover hidden shards of Mars’ violent birth, frozen for billions of years

Mars isn’t the neatly layered world we once imagined — its mantle is filled with ancient, jagged fragments left over from colossal impacts billions of years ago. Seismic data from NASA’s InSight mission revealed that these buried shards, some up to 4 km wide, are still preserved beneath the planet’s stagnant crust, acting as a geological time capsule.

from Latest Science News -- ScienceDaily https://ift.tt/WM5tp3K

Ancient DNA finally solves the mystery of the world’s first pandemic

Scientists have finally uncovered direct genetic evidence of Yersinia pestis — the bacterium behind the Plague of Justinian — in a mass grave in Jerash, Jordan. This long-sought discovery resolves a centuries-old debate, confirming that the plague that devastated the Byzantine Empire truly was caused by the same pathogen behind later outbreaks like the Black Death.

from Top Health News -- ScienceDaily https://ift.tt/OqfIzk9

Friday, August 29, 2025

In the dark for 11 million years: How blind cavefish rewrote evolution

Yale scientists discovered that cavefish species independently evolved blindness and depigmentation as they adapted to dark cave environments, with some lineages dating back over 11 million years. This new genetic method not only reveals ancient cave ages but may also shed light on human eye diseases.

from Top Health News -- ScienceDaily https://ift.tt/b4czvHR

In the dark for 11 million years: How blind cavefish rewrote evolution

Yale scientists discovered that cavefish species independently evolved blindness and depigmentation as they adapted to dark cave environments, with some lineages dating back over 11 million years. This new genetic method not only reveals ancient cave ages but may also shed light on human eye diseases.

from Latest Science News -- ScienceDaily https://ift.tt/b4czvHR

Scientists discover first new penguin species in more than 100 years

Genetic evidence has revealed a previously unknown gentoo penguin species on the remote Kerguelen Islands and shown that gentoos actually co...