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Today's Science News: Key Discoveries and Advances

Human Blood Chemistry Shifts with Rising CO2

A two-decade analysis of U.S. health data reveals that blood bicarbonate levels have risen approximately 7% since 1999, while calcium and phosphorus have declined, mirroring the trajectory of increasing atmospheric carbon dioxide.

Read more: Scientists detect a surprising shift in human blood as CO2 rises

China's New Moon Map Signals Bold Space Ambitions

China has published a high-resolution global moon map, marking a significant milestone in its lunar exploration program and demonstrating advanced cartographic capabilities for future missions.

Read more: 'This goes beyond showcasing technological soft power': China's new moon map signals bold space ambitions (video) - Space

COVID-19 Triggers Dormant Viruses Linked to Long COVID

Research indicates that COVID-19 can trigger the reactivation of dormant viruses such as Epstein-Barr and cytomegalovirus, with one viral family showing a notable association with long COVID and persistent disability.

Read more: COVID-19 awakens dormant viruses — and one is linked to long COVID

Black Hole Shreds Massive Star; Something May Have Survived

Astronomers observed a black hole violently tearing apart a massive star, an event nicknamed 'the Whippet' that briefly released about 400 billion times the Sun's energy. Surprisingly, months after the explosion, fast-moving helium was detected, suggesting some structure may have survived the destruction.

Read more: A black hole shredded a "super sun" — but something strange may have survived

Japan Expands to Martian Moons

Japan's space agency has unveiled plans to explore the Martian moons Phobos and Deimos, marking a significant expansion of the country's interplanetary ambitions.

Read more: Japan aims for the moons of Mars - japantimes.co.jp

Why Walking Becomes Harder With Age

Research reveals that as people age, the body prioritizes stability over walking efficiency by stiffening the ankle with each step, which helps prevent falls but also increases muscle effort and reduces forward motion.

Read more: Scientists reveal why walking gets so much harder with age