Monthly Archives: May 2026

Artemis II: A Lunar Flyby with Modern Comforts

Posted on May 3, 2026 by ST Editors

by S. Prasad Ganti More than five decades after the last Apollo flight and three years after the unmanned Artemis I flight to the moon, Artemis II went to the moon along with four astronauts and came back successfully with … Continue reading →

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The velocity calculations using frequency shift are not accurate

Posted on May 3, 2026 by ST Editors

by William H Davis Why do the text books give different redshift equations for the observer stationary versus the observer in motion? Why do we use the equation for the observer stationary when the Earth is clearly moving through space … Continue reading →

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Snippets

Posted on May 3, 2026 by ST Editors

compiled by Arlene & David Kaplan Telling Time on Other Worlds From Earth orbit to the Moon and Mars, explore the world of human spaceflight with NASA each week on the official podcast of the Johnson Space Center in Houston, Texas. … Continue reading →

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