العلوم والبيئة
Stars make oxygen for small galaxies, but they lose most of it
المصدر: Phys.org - latest science and technology news stories · نُشر

Scientists examining data collected by NASA's Hubble Space Telescope have found that dozens of small galaxies contain far less oxygen than their stars are estimated to have produced. The researchers, including a Rutgers astrophysicist, studied 37 dwarf galaxies, which are much sm
Scientists examining data collected by NASA's Hubble Space Telescope have found that dozens of small galaxies contain far less oxygen than their stars are estimated to have produced. The researchers, including a Rutgers astrophysicist, studied 37 dwarf galaxies, which are much smaller than the Milky Way and considered to be nearby, within 22 million light-years of Earth. The results were published in The Astrophysical Journal.
أخبار ذات صلة
Scientists discover that some “unhealthy” diets can boost cancer immunotherapy in mice
In a surprising discovery, scientists found that certain diets associated with obesity can make cancer immunotherapy more effective in mice, challenging traditional assumptions about diet and cancer treatment. The findings suggest that the secret may lie in how food interacts wit
All Top News -- ScienceDaily ·
Scientists shrink Archimedes’ screw to the size of a single molecule
Scientists have built a groundbreaking molecular motor that spins in either direction using electricity, inspired by a machine invented more than 2,000 years ago. Even more remarkably, its rotation can boost electrical conductivity by up to 100 times, potentially transforming the
All Top News -- ScienceDaily ·
Scientists use sound waves to deliver a new attack on deadly brain cancer
Scientists at the University of Virginia have developed a promising new strategy to fight glioblastoma, one of the deadliest and most difficult-to-treat forms of brain cancer. Their experimental approach combines focused ultrasound, tiny nanoparticles, and genetic molecules calle
All Top News -- ScienceDaily ·
Scientists say a forgotten particle may explain why the universe exists
A mysterious particle overlooked for decades may hold the key to why matter survived the Big Bang, allowing stars, planets, and life to exist. Scientists believe this forgotten neutrino reshaped the early universe and may have left detectable gravitational wave signals that could
All Top News -- ScienceDaily ·
Scientists discover the hidden “muscles” trees use to straighten themselves
Scientists have discovered that trees can sense their own shape and straighten their trunks using specialized wood that acts like opposing muscles. This remarkable ability helps trees maintain their posture and could lead to stronger forests, better timber, and more resilient cro
All Top News -- ScienceDaily ·