Podcast Episodes
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874-Good night at Bok
On a recent clear night my Catalina Sky Survey teammate Hannes Groller was asteroid hunting with the Steward Observatory 90 inch Bok telescope on Kitt Peak, Arizona when he discovered 8 natural visit…
Published on 12 hours ago
361E-393-Newest Moon
The moon cycle from new moon through full moon and back to new moon again was used by many nations to regulate their activities and forms the basis of the Islamic lunar calendar. A calendar based on …
Published on 3 days, 12 hours ago
873-Tracking 3I/Atlas
Scientists are using many approaches to understanding the nature and history of 3I/Atlas the third known interstellar traveler in the night. At a hyperbolic velocity of 130,000 mph it is the fastest …
Published on 1 week ago
360E-391-Finding Spacerocks
Finding a meteorite that has traveled billions of miles through space to reach it's present location is exciting. It might even be worth real money.
Published on 1 week, 3 days ago
872-Climate Ignored
Obtaining accurate data on the Earth’s climate and how it is changing is vital to inform agriculture , insurance risks, business planning, disaster preparedness, financial investments, wild fire miti…
Published on 2 weeks ago
359E-390-One in 100,000
Friday the 13th appears to continue to be a lucky day for the human race. When astronomers first discovered Apophis in 2004 it appeared possible that this 3 million ton, 1,200 foot diameter asteroid …
Published on 2 weeks, 3 days ago
871-New Mars Trojan
The Lagrange point L4 is 60° ahead of Mars whereas L5 is 60° behind Mars on the red planet’s orbital path about the Sun. An object placed at either of these locations is trapped gravitationally and i…
Published on 3 weeks ago
358E-389-Tiny Spacecraft
To reach the vicinity of the nearest star, 24 trillion miles away, in less than 20 years, an interstellar space probe would have to travel at a substantial fraction of the speed of light. Newton's la…
Published on 3 weeks, 3 days ago
870-Satellite Ashes
50 years ago scientists found that Chlorofluorocarbons or CFC chemicals in widespread use in refrigeration, air conditioning , and hair spray were beginning to damage the ozone layer in the Earth’s s…
Published on 4 weeks ago
357E-388-40 years
Looking at the stars on a clear dark night, far from the artificial air glow humanity creates, have you ever wondered what it would be like to travel in truly deep interstellar space? 40 years after …
Published on 1 month ago