The 365 Days of Astronomy

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. From September 2024. Today's 2 topics: - When asteroid hunters follow an object in the night sky for a few hours or a couple of days they are only able to observe a snippet or tracklet of the object's hundreds to thousands of days long path around the Sun. If we only have a short sample of an orbit we loose precision to locate the object as the length of time since the last observation increases. It is thus possible to lose...

The 365 Days of Astronomy

NSF NOIRLab, funded by the U.S. National Science Foundation (NSF), has released the fulldome planetarium show, Messengers of Time and Space. This free-to-download production brings the combination of the International Gemini Observatory, funded in part by NSF and operated by NSF NOIRLab, and NSF–DOE Vera C. Rubin Observatory, funded by NSF and the U.S. Department of Energy's (DOE) Office of Science and jointly operated by NOIRLab and DOE’s SLAC, to the forefront of humanity’s quest to understand our ever-changing cosmos. This podcast discusses the production process of this planetarium...

The 365 Days of Astronomy

From October 7, 2021. An analysis of the most recent sample taken from the Moon and returned by the Chang’e-5  mission shows that the basaltic rock is about two billions years old. This age implies a previously unknown heat source in the region. Plus, how plants and animals record climate change, and this week’s What’s Up.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps!...

The 365 Days of Astronomy

Paul Hill, Ralph Wilkins and Dr. Jenifer “Dr. Dust” Millard host.  Damien Phillips, John Wildridge and Dustin Ruoff produce. This month we have Galactic sized lancing battles, Jupiter twice its size, Wales entering the space race and we have emails! Oh we have emails!   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you! ------------------------------------ Do go visit...

The 365 Days of Astronomy

TRIBU Cultura Astronómica is an organization dedicated to the dissemination of astronomy and scientific culture. It is an organization dedicated to boosting awareness of the Universe through astronomical experiences.   - We facilitate astronomical observation experiences with telescopes and specialized guides that take you on an adventure through the cosmos. - Learning spaces directed to all public audiences to learn about the Universe. In addition we facilitate content, activities and strategies for teaching astronomy. - We provide downloadable audiovisual content of scientific...

The 365 Days of Astronomy

From Oct 12, 2010. The fact that we've found a habitable planet candidate so soon after starting our search has important implications for the number of habitable planets that may exist in our galaxy - which was estimated to be around 10 billion.     Having found Gliese 581g so soon though, may mean one of two things.  Either we were very lucky, or there are more planets out there than we thought.  Based on this discovery, it's possible that we may have many more habitable planets than originally thought.     Perhaps 20 to 30 billion stars in our galaxy may have...

The 365 Days of Astronomy

From September 22, 2008. Look around you. Breathe in some air. Everything you can see and feel was formed in a star. Today we’ll examine that long journey that matter has gone through, forged and re-forged in the hearts of stars. In fact, the device you’re using to listen to this podcast has some elements formed in a supernova explosion.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit...

The 365 Days of Astronomy

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. From August 2024. Today's 2 topics: - The asteroid Psyche may be one of the most expensive pieces of real estate in the solar system. It is a small world about 116 miles in diameter and is composed of almost pure nickel-iron metal. It is located in the asteroid belt between Mars and Jupiter. Scientists find evidence that Psyche may be the exposed core of a planet which was destroyed by collisions as it was trying to form...

The 365 Days of Astronomy

Hosted by Tony Darnell. From July 6, 2017. If we send humans to Mars, will they be able to survive? How hostile is the solar system for human exploration? The Mars environment presents many challenges to human survival and long-term residence. In addition to radiation, unbreathable atmosphere, and dust storms, surviving alien microorganisms can present a health risk.   The US Congress has directed NASA to plan for a human mission to Mars. A critical element of the planning is to ensure the health and safety of astronauts travelling to, working on, and returning from the Red Planet. ...

The 365 Days of Astronomy

From May 21, 2025. This week, we take a closer look at the weirdly twisty search for a possible planet in our outer solar system. We'll also take in the happy science of aurorae here, at Jupiter, and over Neptune, as well as a bunch of weird discoveries that has some people screaming "It's Aliens!" (it's not aliens).    We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you!...