NASA tracks Mexico City's subsidence, Pentagon releases UFO files, and U.S.-China competition intensifies over telescope projects in South America

NASA is using powerful radar systems to monitor Mexico City's subsidence, with the city sinking up to 2cm per month into the ground, providing new data that experts hope will increase attention to this critical infrastructure issue.

The Pentagon released "never-before-seen" declassified files on unidentified flying objects dating back decades, shedding new light on what the U.S. government has documented regarding UFO incidents.

U.S.-China rivalry is extending to South American skies, with the U.S. pressing Argentina and Chile to review two Chinese telescope projects in the Andean deserts, raising concerns among astronomers about potential research setbacks.

Scientists are urging Congress to address the National Science Foundation's slowed grant pace following White House attacks on the agency, warning that funding delays could disadvantage the U.S. relative to China in scientific research.

The constellation Virgo is well-positioned for observation during northern spring months, situated between the much brighter constellations Leo and Libra, offering stargazers an opportunity to view one of the fainter zodiac constellations.

The Doomsday Clock now stands closer to midnight than ever before due to increased threats from nuclear war, Iran conflict, Ukraine invasion, AI risks, and climate breakdown, with the organization behind the clock warning humanity faces unprecedented danger.

NASA's Artemis II mission astronauts answered questions from children about their space journey experiences and what they ate for dessert in space, bringing space exploration closer to younger audiences.

Scientists have harnessed bioluminescent algae's blue glow to create 3D-printed shapes that could be embedded in biosensors to detect environmental toxins, demonstrating a novel application of marine biology.

Moderna and Korea University have been developing a new mRNA vaccine for hantavirus since 2023 with promising early results, though a finished product is unlikely to arrive in the near term as passengers from a hantavirus-infected ship are being treated in biocontainment.

David Attenborough celebrated his 100th birthday, marking a century of contributions to natural history broadcasting and environmental awareness that has shaped how generations understand the natural world.