Space and astronomy news highlights include concerns about U.S.-China competition in telescope research, advances in ancient human biology, and emerging technologies for atmospheric and space applications.

U.S.-China rivalry extends to South American astronomy as the U.S. presses Argentina and Chile to review two Chinese telescope projects in the Andean deserts, with astronomers worried about potential setbacks to international research collaboration and scientific progress.

A theoretical cosmologist Chanda Prescod-Weinstein releases her second pop-science book exploring celestial and cultural roots, bringing poetry and accessible perspectives to complex cosmic concepts.

Scientists are urging Congress on concerns about the National Science Foundation's slowed grant pace under White House scrutiny, warning that reduced research funding could disadvantage the United States in competition with China.

Protein analysis from Homo erectus teeth reveals evidence that Denisovans contributed DNA to modern humans, adding new insights into ancient human evolutionary history and cross-species genetic exchange.

A solar drone with a jumbo jet-sized wingspan achieved a flight record before crashing, demonstrating progress in experimental aircraft designed to operate in extreme atmospheric conditions.

Stardust Solutions proposes using tiny reflective particles to cool the planet by reflecting solar rays, though critics argue private companies should not unilaterally alter Earth's atmosphere without broader oversight.

Pentagon UFO files were discussed in a recent science podcast update, continuing public and scientific interest in unidentified aerial phenomena documentation and government transparency on the topic.

Forecasters predict incoming El Niño conditions will trigger increased wildfires, floods, and severe heatwaves globally, highlighting climate pattern impacts on weather extremes.

Neanderthals demonstrated sophisticated dental care approximately 59,000 years ago, with a Siberian molar showing evidence of stone drill treatment for cavities—the earliest known dental intervention.