Category Archives: Sidereal Times

Book Review: Infinite Cosmos: Visions From the James Webb Space Telescope, by Ethan Siegel

Posted on April 5, 2026 by ST Editors

By Richard Sherman Published 2024 Grade:  A $28.32, hardback, at Amazon.com  224 pages “Infinite Cosmos” is a large, coffee table-sized book. It is published by National Geographic, so the production quality is excellent as are the images and diagrams. For … Continue reading →

Posted in April 2026, Sidereal Times | Tagged , , | Leave a comment

Neutrino Astronomy

Posted on April 5, 2026 by ST Editors

By Prasad Ganti Astronomy started out as optical, viewing the light emitted by astronomical bodies in space. Our ancestors looked at the night sky and imagined patterns of stars and distant bodies. Several advances occurred in the last four hundred … Continue reading →

Posted in April 2026, Sidereal Times | Tagged , , , | Leave a comment

Short Stories Series

Posted on April 5, 2026 by ST Editors

by Eklavya Doegar, Student, 8th grade Amazing stories from Ancient Astronomy Aryabhata I: The Young Stargazer  A long time ago in the land of India, there lived a boy who couldn’t stop looking up at the skies. This was in … Continue reading →

Posted in April 2026, Sidereal Times | Tagged , , | Leave a comment

Snippets

Posted on April 5, 2026 by ST Editors

compiled by Arlene & David Kaplan Artemis II Flight Day 5: Crew Demos Suits, Readies for Lunar Flyby The Artemis II crew of NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen, continue their workday aboard the Orion spacecraft.  With a demonstration underway of the Orion crew survival system spacesuit, the crew also will prepare for their lunar … Continue reading →

Posted in April 2026, Sidereal Times | Tagged , | Leave a comment

From The Director

Posted on March 2, 2026 by ST Editors

by Rex Parker, PhD director@princetonastronomy.org March 10, 2026 Meeting at Peyton Hall.  The approach of the vernal equinox is a great time of year in the northern hemisphere!  It reminds us that the cycle of life is deeply intertwined with … Continue reading →

Posted in March 2026, Sidereal Times | Tagged , , | Leave a comment

From The Program Chair

Posted on March 2, 2026 by ST Editors

by Victor Davis, Program Chair A Dynamic PresentationThe March, 2026 monthly meeting of the Amateur Astronomers Association of Princeton will take place in Peyton Hall on the campus of Princeton University on Tuesday, March 10th at 7:30 PM. As usual, … Continue reading →

Posted in March 2026, October 2025, Sidereal Times | Tagged , , , , , | Leave a comment

Minutes of the February 10, 2026 Meeting

Posted on March 2, 2026 by ST Editors

by Gene Allen, Secretary Assistant Director Bob Vanderbei opened the meeting in Peyton Hall at 1931 with photos from his recent trip to Egypt while describing his frustration at being unable to do astrophotography in our greatly improved weather. There … Continue reading →

Posted in March 2026, Sidereal Times | Tagged , , | Leave a comment

An Intuitive Approach to Fermat’s Last Theorem

Posted on March 2, 2026 by ST Editors

by John Church Pierre de Fermat’s famous “Last Theorem” states that there are no examples of x^n + y^n = z^n for n greater than 2, where x, y, z, and n are positive integers. When making this statement in … Continue reading →

Posted in Sidereal Times | Tagged , , | Leave a comment

The Hunt For Primordial Stars

Posted on March 2, 2026 by ST Editors

by Prasad Ganti The hunt for the first stars formed in the universe is on. There have been some promising candidates but no confirmations yet. The first batch of stars called the population III stars were formed when the universe was … Continue reading →

Posted in March 2026, Sidereal Times | Tagged , | Leave a comment

Stars and Fights: How the Night Sky Guided Armies

Posted on March 2, 2026 by ST Editors

by Veer Bedi, Eighth Grade, Princeton Middle School The night sky is full of wonders. You can see stars, planets, constellations, star clusters, and even the occasional shooting star. Go out on a clear, moonless night in a place with … Continue reading →

Posted in March 2026, Sidereal Times | Leave a comment

Rubin’s Cosmic Treasure Chest

Posted on March 2, 2026 by ST Editors

by Rich Sherman

Posted in March 2026, Sidereal Times | Tagged , , | Leave a comment

Snippets

Posted on March 2, 2026 by ST Editors

compiled by Arlene & David Kaplan This Comet Stopped Spinning. Then It Started Rotating Backward. If you were standing on the surface of Comet 41P/Tuttle-Giacobini-Kresák nine years ago as it was getting closer to the sun, you might have been … Continue reading →

Posted in March 2026, Sidereal Times | Tagged , | Leave a comment

From The Director

Posted on February 3, 2026 by ST Editors

by Rex Parker, PhD director@princetonastronomy.org February 10, 2026 Meeting at Peyton Hall.  Let’s get a strong turnout in person at Peyton Hall for the Feb 10 meeting.  It will also be run as a hybrid meeting via Zoom, so join … Continue reading →

Posted in February 2026, Sidereal Times | Tagged , , | Leave a comment