Tag Archives: ganti

Black holes, Entropy, and information

Posted on June 4, 2023 by ST Editors

by S. Prasad Ganti In the century following Albert Einstein’s General theory of relativity, the term “Black holes” entered our lexicon. In addition to a greater understanding, Black holes have been confirmed via indirect means and also photographed in the … Continue reading →

Posted in June 2023, Sidereal Times | Tagged , | Leave a comment

Before our universe and beyond

Posted on May 1, 2023 by ST Editors

by S. Prasad Ganti Two questions interested me since my early years. One is what happened before ?  Another is what lies beyond ? Scientific advances over the years have lighted these two paths to an extent. But the path … Continue reading →

Posted in May 2023, Sidereal Times | Tagged , | Leave a comment

What we “see”

Posted on April 1, 2023 by ST Editors

by S. Prasad Ganti We heard in the last couple of lectures how the data from the James Webb telescope is processed by visual specialists using tools like specialized algorithms and Photoshop to come up with the stunning images of … Continue reading →

Posted in April 2023, Sidereal Times | Tagged , | Leave a comment

Marshall Space Flight Center

Posted on March 5, 2023 by ST Editors

by S. Prasad Ganti Huntsville, Alabama is known as the Rocket City. This is where the rocket scientist Wernher Von Braun worked on designing rockets to fly to the moon. At what is now named as Marshall Space Flight Center, … Continue reading →

Posted in March 2023, Sidereal Times | Tagged , | Leave a comment

The Rise of The Twin

Posted on January 1, 2023 by ST Editors

Artemis, the twin sister of Apollo, rises after five decades. The recent Artemis mission is NASA’s attempt to send astronauts back to the moon after a lapse of five decades. Continue reading →

Posted in January 2023, Sidereal Times | Tagged , | Leave a comment

The ARIES Telescopes

Posted on December 3, 2022 by ST Editors

by S. Prasad Ganti Very powerful ground based optical telescopes are found mostly in Chile and Hawaii. Some in the Canary Islands. There is an observatory nestled in the foothills of Himalayas in an Indian town called Nainital. Called ARIES … Continue reading →

Posted in December 2022, Sidereal Times | Tagged , , , | Leave a comment

DART and Impact

Posted on October 27, 2022 by ST Editors

by S. Prasad Ganti For the first time in human history, we sent a spacecraft and jammed it into a space rock and the trajectory of that piece got nudged as a result. It was a great attempt and a … Continue reading →

Posted in November 2022, Sidereal Times | Tagged , , | Leave a comment

Dr. Maarten Schmidt and Quasars

Posted on October 3, 2022 by ST Editors

by S. Prasad Ganti Eminent astronomer Dr. Maarten Schmidt passed away recently. His greatest discovery was an esoteric astronomical object called a Quasar. He appeared on the cover of the Time magazine in 1967 for brilliantly solving a part of … Continue reading →

Posted in October 2022, Sidereal Times | Tagged , , | Leave a comment

The Southern Skies

Posted on September 3, 2022 by ST Editors

by S. Prasad Ganti Some stars, constellations and galaxies are visible from the northern hemisphere which are not visible or barely visible from the southern hemisphere. Likewise, some stars, constellations and galaxies are unique to the skies as seen from … Continue reading →

Posted in September 2022, Sidereal Times | Tagged , , , | Leave a comment

From Hubble to the Webb Space Telescope

Posted on August 8, 2022 by ST Editors

by S. Prasad Ganti The first pictures from the James Webb telescope were released recently. The prize comes after decades of hard work by thousands of scientists and engineers and billions of dollars of cost overruns. In the end it … Continue reading →

Posted in Mid-summer 2022, Sidereal Times | Tagged , , | Leave a comment