SciTechDaily Newsletter

"The latest science, space, and technology news."

Views expressed in this science and technology update are those of the reporters and correspondents.  Accessed on 22 June 2026, 1504 UTC.

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Russ Roberts (https://hawaiisciencemonitor.blogspot.com).

SciTechDaily Newsletter

The latest science, space, and technology news.

Hidden Alzheimer’s Biomarker Could Change How Doctors Prescribe Hormone Therapy   2026-06-22 12:30:07 +00:00 Researchers found that an Alzheimer’s-related biomarker may influence how hormone therapy affects dementia risk. Hormone therapy is commonly used to ease menopausal symptoms, including hot flashes and night sweats. Whether it affects the risk of dementia has remained a long-running question. A new study offers another clue. It suggests that an Alzheimer’s biomarker could help [...] Read more...   Koalas Nearly Vanished 100,000 Years Ago – Long Before Humans Arrived   2026-06-21 23:19:22 +00:00 Koalas survived a climate-driven population crash 100,000 years ago, and new genomic research is helping scientists better protect the species today. A major genomic study has transformed scientists’ understanding of koala (Phascolarctos cinereus) evolution, showing that the species underwent a dramatic population decline about 100,000 years ago, long before humans reached Australia. Researchers found that [...] Read more...   Ancient Ice Man Still Hosts Mysterious Cold-Loving Organisms, Study Finds   2026-06-21 22:44:26 +00:00 A new study untangles the complex microbial history of Ötzi the Iceman, revealing which microorganisms originated during his lifetime and which arrived long after his death. For more than 5,000 years, Ötzi the Iceman has carried an invisible community of microbes through ice, time, and modern museum preservation. Now, scientists have taken the most detailed [...] Read more...   Scientists Discover a Gene That Boosts Youth – but It Comes With a Cost   2026-06-21 22:09:28 +00:00 Researchers have identified a gene that appears to balance a powerful evolutionary trade-off, boosting growth and reproductive success early in life while carrying hidden costs later on. The biological processes that help build a healthy young body may also sow the seeds of aging and cancer. Researchers have now identified a gene that appears to [...] Read more...   A Decade-Long Physics Mystery May Finally Be Solved   2026-06-21 18:52:16 +00:00 Researchers precisely measured the proton’s size, resolving the proton radius puzzle and strengthening confidence in the Standard Model of particle physics. Hydrogen is the simplest element in the universe and the first entry on the periodic table. Each hydrogen atom contains just one proton in its nucleus and one electron orbiting around it. Because of [...] Read more...   AI Cracks the Secrets of How the Universe’s Heaviest Elements Are Forged   2026-06-21 18:17:20 +00:00 A machine learning-powered simulation is giving researchers a new window into the processes that create some of the universe’s heaviest elements. Where do the gold in jewelry, the uranium in nuclear fuel, and many of the universe’s heaviest elements come from? Scientists believe they are forged in some of the most violent events in the [...] Read more...   After 50 Years, Astronomers Finally Found What the Milky Way’s Black Hole Was Hiding   2026-06-21 17:42:19 +00:00 A decades-long search has revealed signs of a subtle outflow from the Milky Way’s central black hole. Something has been missing from the Milky Way’s central black hole. For more than half a century, astronomers searched for a telltale wind that theory said must be blowing from Sagittarius A* (Sgr A*), the supermassive black hole [...] Read more...   Scientists Discover Immune Cells That Can Fight Both Measles and Nipah   2026-06-21 15:33:01 +00:00 Measles vaccine-induced T cells were able to recognize the deadly Nipah virus, raising the possibility of broader vaccines that could help defend against multiple emerging viruses at once. T cells are among the immune system’s most powerful defenders. They can help slow tumor growth and fight serious infections. Researchers at La Jolla Institute for Immunology [...] Read more...   The Most Powerful Drug of All Isn’t Found in a Pill Bottle   2026-06-21 14:58:43 +00:00 New research highlights the far-reaching health effects of movement, showing that even modest physical activity can influence well-being and disease outcomes. Exercise is often treated as a lifestyle choice, but growing evidence suggests it may be one of the most powerful forms of medicine available. Researchers at Wits University have found that movement can help [...] Read more...   Scientists Capture Immune Cells Eating Live Cancer Cells for the First Time   2026-06-21 14:23:02 +00:00 Scientists discovered and filmed macrophages actively destroying live melanoma cells, a finding that could improve immunotherapy and inspire new cancer treatments. Scientists at the Garvan Institute of Medical Research have, for the first time, recorded immune cells known as the body’s “housekeepers” actively attacking and consuming live melanoma cells. The discovery could reshape how researchers [...] Read more...

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