logo
episode-header-image
Apr 2025
6m 5s

Travelers in the Night Eps. 787 & 788: F...

365DAYSOFASTRONOMY.ORG
About this episode

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org

From March, 2024.

Today's 2 topics:

- In 2024, Voyager I is 163 times further from the Sun than we are and is the most distant, human made, traveler in the night.

- In 1924, 100 years ago, the Aldo Leopold Wilderness in southwestern New Mexico became the first designated wilderness and is an island from which to view the natural night sky. Today, because of inappropriate night lighting, the vast majority of children will never see the Milky Way, a meteor streaking across the sky, or have the opportunity to walk around at night by the light of the stars.

 

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

Just visit: https://www.patreon.com/365DaysOfAstronomy 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 http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

http://cosmoquest.org/Donate This show is made possible through your donations. 

Thank you! (Haven't donated? It's not too late! Just click!)

------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at info@365DaysOfAstronomy.org.

Up next
Today
Awesome Astronomy - The Search for Aliens with Seth Shostak
Awesome Astronomy - The Search for Aliens with Seth Shostak https://www.youtube.com/watch?v=Bj6Wfv1djf0 Paul Hill, Ralph Wilkins and Dr. Jenifer “Dr. Dust” Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. From Jan 3, 2022. Our chat with Dr. Seth Shostak fro ... Show More
16m 47s
Yesterday
Guide to Space - Which Are The Real Pictures of Space? What’s a Photo and What’s An Illustration?
https://www.youtube.com/watch?v=Q41hLHcKyUM From Mar 21, 2018. Have you ever wondered how those amazing pictures of space are gathered? Which are photographs, which are illustrations, and which are total fakes? [Editor’s note: You’ll have to go to the YouTube link above to see th ... Show More
12m 27s
Oct 7
Ask A Spaceman Ep. 257: How Does One Go About Smashing Particles?
How to smash a particle. How do particle colliders work? What kinds of energies are we talking about? Are there any uses for colliders except for physics experiments? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter A ... Show More
29m 48s
Recommended Episodes
Feb 2025
Saying Farewell to the Spacecraft That Mapped the Milky Way
The Gaia spacecraft stopped collecting data this January after about 11 years and more than three trillion observations. Senior space and physics editor Lee Billings joins host Rachel Feltman to review Gaia’s Milky Way–mapping mission and the tidal streams, black holes and astero ... Show More
17m 20s
Jan 2025
Extreme Winds, Martian Clays & Hidden Stars: #491 - The Interstellar Exploration
Space Nuts Episode 491: The Windiest Planet, Martian Mysteries, and Light Pollution Concerns Join Andrew Dunkley and Professor Jonti Horner in this captivating episode of Space Nuts, where they explore some of the most fascinating cosmic discoveries of our time. From the extraord ... Show More
39m 45s
Feb 2025
Measles Outbreaks, Asteroid Risks and Fish Friends
The black hole at the center of our galaxy is emitting near-constant, random light. The European Space Agency has approved astronaut candidate John McFall, making McFall the first physically disabled candidate to be cleared to fly. The risk of asteroid 2024 YR4 hitting Earth rose ... Show More
7m 20s
Feb 2025
An Asteroid May Hit Earth in 2032. What Can We Do about It?
The European Space Agency recently announced that the near-Earth asteroid 2024 YR4 has a 2 percent chance of hitting our planet in 2032. The probability of impact is difficult to predict exactly and will be clearer in 2028, when 2024 YR4 will whiz by us. But if the asteroid reall ... Show More
13m 11s
Aug 25
Science’s Greatest 180s
Science doesn’t always get it right the first time—and that’s part of the journey. In this anniversary episode, we explore how ideas about nerve damage, sustainable materials and alien life have done a full 180. Recommended Reading Celebrating 180 Years of Scientific American 180 ... Show More
8m 4s
Sep 15
Kissing Bugs, Koalas and Clues to Life on Mars
A paper published by the Centers for Disease Control and Prevention argues that Chagas disease is now endemic in the U.S. Koalas may finally be spared from a deadly epidemic. Meanwhile NASA’s Perseverance Mars rover has uncovered tantalizing clues about potential ancient microbia ... Show More
9m 37s
Apr 2024
REACH Earth Day Special: What is Climate Change?
REACHing Out are bi-weekly mini-episodes where we answer YOUR Questions. This week we are celebrating Earth Day and what NASA is doing to study global climate change with some help from Dr. Dalia Kirschbaum, Director of the Earth Science Division, NASA Goddard Space Flight Center ... Show More
9m 7s
Feb 2023
355 Days in Space: Finding Meaning with Astronaut Mark Vande Hei
After a historic 355 days in orbit, NASA astronaut Mark Vande Hei returned to Earth on March 30, 2022, breaking the record for the longest single spaceflight by an American. In this episode of Smart Talks with IBM, Malcolm Gladwell and Mark Vande Hei discuss conducting experiment ... Show More
31m 11s
Feb 2025
Sample Return Missions - What Could Possibly Go Wrong?
This time Dr Becky Smethurst and Izzie Clarke discover why it’s touch and go when it comes to returning asteroid samples to Earth and hear how we’ve been exchanging spit with Mars since the dawn of the Solar System. The team is joined by Dr Sara Russell, a meteorite researcher at ... Show More
46m 40s