Top 20 Science International News

Here are summaries of the top 20 international science news items as of June 13, 2025, with links for further details:

1. Dinosaurs Possible Due to 10,000-Mile March Through Fire: A group of reptiles thrived after Earth's most devastating mass extinction, venturing across lifeless tropics
   Source: www.sciencedaily.com.
2. Teen Anxiety Calmed by Extra Weekend Sleep: Teenagers who get up to two extra hours of sleep on weekends show fewer anxiety symptoms
   Source: www.sciencedaily.com.
3. Tumor DNA Detected Three Years Early with Johns Hopkins Blood Test: Fragments of tumor DNA can appear in the bloodstream up to three years before a cancer diagnosis
   Source: www.sciencedaily.com.
4. Running Rewires Brain Cells Against Alzheimer’s: Exercise directly influences brain health in Alzheimer's disease by affecting specific brain cells
   Source: www.sciencedaily.com.
5. Biofilms Help Stop Microplastic Build-Up: Sticky biofilms produced by bacteria prevent microplastics from accumulating in riverbeds
   Source: www.sciencedaily.com.
6. Molecules Ride Perfect Waves in DNA Droplets: Guest molecules advance in an organized wave inside DNA-based droplets, a breakthrough for synthetic biology
   Source: www.sciencedaily.com.
7. Smells Tell Your Brain to Stop Eating: A direct link exists between the smell of food and feelings of fullness, helping animals eat less
   Source: www.sciencedaily.com.
8. Bat Virus Close to Infecting Humans: A bat virus closely related to MERS coronavirus is one mutation away from infecting humans
   Source: www.sciencedaily.com.
9. Brain-Computer Interface Restores Real-Time Speech in ALS Patient: A brain-computer interface enables a man with ALS to speak again by converting thoughts into speech in real time
   Source: www.sciencedaily.com.
10. New Weight Loss Drug Rivals Surgery: A new compound targeting four gut hormones may revolutionize weight loss drugs
    Source: www.sciencedaily.com.
11. Webb Telescope Reveals Monster Star Clumps in Galactic Wreckage: Massive, dense star factories are identified in merging galaxies, unlike any found in the Milky Way
    Source: www.sciencedaily.com.
12. Rivers Exhaling Ancient Carbon: Over half the carbon gases released by rivers come from long-term, old carbon sources
    Source: www.sciencedaily.com.
13. Female Earwigs Evolved Deadly Claws: Female earwigs are evolving exaggerated weaponry just like males
    Source: www.sciencedaily.com.
14. Telescopes Detect 13-Billion-Year-Old Signal: Astronomers detect ultra-faint light from the Big Bang using ground-based telescopes
    Source: www.sciencedaily.com.
15. This Mind-Bending Physics Breakthrough Could Redefine Timekeeping: Scientists have found a way to boost timekeeping precision dramatically using a quantum approach
    Source: www.sciencedaily.com.
16. This stretchy neural implant grows with an axolotl’s brain: A neural implant grows with an axolotl’s brain
    Source: www.nature.com.
17. Tiny human hearts grown in pig embryos for the first time: The hearts started to beat in the pig–human hybrids, which survived for 21 days
    Source: www.nature.com.
18. Mysterious link between Earth’s magnetism and oxygen baffles scientists: Earth’s magnetism and oxygen baffles scientists
    Source: www.nature.com.
19. People can be identified by their breathing patterns with 97% accuracy: Humans have unique breathing patterns that can be used to identify and distinguish individuals
    Source: www.livescience.com.
20. Scientists discover strong, unexpected link between Earth's magnetic field and oxygen levels: Earth's magnetic field and oxygen levels have increased more or less in parallel over the past 540 million years
    Source: www.livescience.com.