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Exposure Guidelines (SMACs and SWEGs)
The JSC toxicologists establish guidelines for safe and acceptable levels of individual chemical contaminants in spacecraft air (SMACs) and drinking water (SWEGs) in collaboration with the National Research Council’s Committee on Toxicology (NRC COT) and through peer-reviewed publication. The framework…
What’s Next for HLS
In 2025, the Harmonized Landsat and Sentinel-2 (HLS) program established itself as a cornerstone for global medium-resolution optical Earth observation and became one of NASA’s most downloaded products.
NASA’s Webb Observes Exoplanet Whose Composition Defies Explanation
Scientists using NASA’s James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system, whose atmospheric composition challenges our understanding of how it formed. Officially named PSR J2322-2650b, this Jupiter-mass object appears to have…
NASA ORBIT Challenge 2026
The NASA ORBIT (Opportunities in Research, Business, Innovation, and Technology for the Workforce) Challenge is a multi-phase, student-focused challenge designed to inspire and empower the next generation of innovators, engineers, entrepreneurs, and researchers. Compete for cash prizes, receive mentorship from…
NASA’s Carruthers Geocorona Observatory Reveals ‘First Light’ Images
NASA’s Carruthers Geocorona Observatory has captured its first images from space, revealing rare views of Earth and the Moon in ultraviolet light. Taken on Nov. 17 — still months before the mission’s science phase begins — these “first light” images…
NASA’s IMAP Mission Captures ‘First Light,’ Looks Back at Earth
All 10 instruments aboard NASA’s newly launched IMAP (Interstellar Mapping and Acceleration Probe) mission have successfully recorded their first measurements in space. With these “first light” observations, the spacecraft is now collecting preliminary science data as it journeys to its…
NASA, Partners Share First Data From New US-European Sea Satellite
Launched in November, Sentinel-6B will track ocean height with ultraprecision to advance marine forecasting, national security, and more. Sentinel-6B, a joint mission by NASA and its U.S. and European partners to survey 90% of the world’s oceans for the benefit…
A Subtle Return of La Niña
A weak La Niña emerged in the equatorial Pacific in late 2025, and scientists are watching how it may help shape weather and climate in the months ahead.
NASA’s Roman Telescope Will Observe Thousands of Newfound Cosmic Voids
NASA’s Nancy Grace Roman Space Telescope will allow us to measure these voids with new precision, which can tell us about the history of the universe’s expansion.
Unexpected Trajectory: Erin Sholl’s Path to Human Spaceflight Safety
Career paths are rarely a straight line and often include some unexpected curves. That is certainly true for Erin Sholl, deputy chief of the Space Transportation Systems Division within the Safety and Mission Assurance Directorate at NASA’s Johnson Space Center…
New Timing for Stubble Burning in India
Scientists say the seasonal crop fires are burning later in the day than in previous years.
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