Travelers In The Night

Travelers In The Night

A real "Science Snack" for anyone who is interested in the extraterrestrial.
Dr. Al Grauer is a member of the Catalina Sky Survey which has led the world in near Earth asteroid discoveries for 17 of the past 19 years.
The music is "Eternity" by John Lyell.
Astronomy Asteroids Space NASA Comets Earth Impact Aliens

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Episoder(1000)

544 Missing

544 Missing

Statistically, asteroid hunters are thought to have discovered 90 to 95% of the Earth approaching asteroids larger than about 3,000 feet in diameter. There are thought to be at least 50 more out there...

12 Jul 20192min

32E-44-A Unique Metal World; Asteroid Psyche

32E-44-A Unique Metal World; Asteroid Psyche

The asteroid Psyche is named for a Greek mythological figure. It was discovered in 1852 as a moving point of light in the night sky. This small world is about 155 miles in diameter and orbits the Su...

9 Jul 20192min

543 Asteroid Zoo

543 Asteroid Zoo

In 2018 Asteroid Hunters discovered 1839 previously unknown space rocks as they passed through our celestial neighborhood. The largest and most dangerous can come to a mere 1,000 miles from humanity. ...

5 Jul 20192min

31E-43-First Earth-Size Planet In 'Habitable Zone

31E-43-First Earth-Size Planet In 'Habitable Zone

The Kepler Space Craft has found tiny regular dips in light from a star which is about 500 light years away in the constellation of Cygnus. The dips in brightness come about when planets pass between ...

2 Jul 20192min

542 Toughest Asteroid

542 Toughest Asteroid

An asteroid has been discovered that comes very near to the Sun where it receives 12.6 times the radiation that heats the planet Mercury's surface to 800 F. This hardy space rock has made this trip ...

28 Jun 20192min

30E-42-Astronauts Reveal Sobering Data on Asteroid Impacts

30E-42-Astronauts Reveal Sobering Data on Asteroid Impacts

On Earth Day Astronauts Dr. Ed Lu, Tom Jones, and Bill Anders announced that between 2000 and 2013, the Nuclear Test Ban Treaty Organization Network detected 26 explosions on Earth ranging in energy ...

25 Jun 20192min

541 Most Dangerous in 2018

541 Most Dangerous in 2018

Fortunately, on its current path, the most dangerous asteroid discovered in 2018 cannot come closer than 12.5 times the Moon's distance to humanity. Not to worry. Asteroid Hunters have not found a s...

21 Jun 20192min

29E-41-Navigating The Night Sky

29E-41-Navigating The Night Sky

To the human eye the night sky is a source of mystery and wonder. Our ancestors knew it well. There is a connection to the cosmos that is hard to describe which you will achieve by knowing the names ...

18 Jun 20192min

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