Kevin Grelck Chief, Flight Dynamics Branch, Launch Services Program Kevin Grelck is the chief of the Flight Dynamics Branch in NASA’s Launch Services Program (LSP) at John F. Kennedy Space Center in Florida. He leads three analytical teams that collectively ensure the rocket flies the mission precisely as designed. TheContinue Reading
The sun sets on NASA’s SLS (Space Launch System) rocket and Orion spacecraft as they stand fully assembled atop the mobile launcher at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Jan. 31, 2026. NASA/Sam Lott NASA is targeting approximately 9 a.m. EST, Wednesday, Feb. 25, toContinue Reading
The sun begins setting above Earth’s atmospheric glow blanketing a cloudy Atlantic Ocean. In the foreground, are a SpaceX Dragon spacecraft (lower left) and a set of the orbital outpost’s solar arrays (right). JAXA/Kimiya Yui The Expedition 74 crew will finalize the packing of a SpaceX Dragon spacecraft as itContinue Reading
2 min read New Volunteer Data from 143 Observatories Unveils the 2024 Total Solar Eclipse On April 8, 2024, volunteers participating in NASA’s Eclipse Megamovie citizen science project all around the United States hurried to photograph the solar eclipse with the latest, greatest equipment, capturing groundbreaking images of the Sun’sContinue Reading
Rosalba Giarratano Science Education Outreach Coordinator, Contractor, Education and Public Outreach Team, Science Directorate, NASA Langley Research Center About Rosalba engages communities in GLOBE and other NASA programs, where her leadership extends to the ENGAGE GLOBE Mission Earth program, offering guidance and training to teachers across the United States. NotableContinue Reading
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A nighttime view of trees at Vanderbilt University in Nashville, TN, show that the tree on the left, located in an unlit area, lost most of its leaves in the fall of 2025. The tree on the right, exposed to artificial light at night from a streetlight, stays green laterContinue Reading
America has been making steel from iron ore the same way for hundreds of years. Unfortunately, it hasn’t been making enough of it. Today the U.S. is the world’s largest steel importer, relying on other countries to produce a material that serves as the backbone of our society. That’s notContinue Reading
From substitutions to forgery, the $195 billion seafood industry is awash with deception. Nuclear forensics might offer a lifeline. By Johnny Sturgeon From Los Angeles’ luxurious sushi restaurants to Latin America’s roadside ceviche stands, consumers are being lied to. The canned tuna sold on supermarket shelves in Europe or theContinue Reading
Physics of the Cosmos … Physics of the Cosmos Community 2026B NASA-Keck Call for… About Community Program Analysis Group (PhysPAG) Science Groups News & Events Cosmic Pathfinders Science Gaps Early Career Workshops Opportunities Missions Studies News & Events Resources 2026B NASA-Keck Call for Proposals 24 February 2026 Some NoIsContinue Reading
Physics of the Cosmos … Physics of the Cosmos Community AAAC Meeting 6… About Community Program Analysis Group (PhysPAG) Science Groups News & Events Cosmic Pathfinders Science Gaps Early Career Workshops Opportunities Missions Studies News & Events Resources AAAC Meeting on 6 March 2026 24 February 2026 The AstronomyContinue Reading
Physics of the Cosmos … Physics of the Cosmos Community NASA IRTF Strategic Planning About Community Program Analysis Group (PhysPAG) Science Groups News & Events Cosmic Pathfinders Science Gaps Early Career Workshops Opportunities Missions Studies News & Events Resources NASA IRTF Strategic Planning – Seeking Community Input 24 FebruaryContinue Reading