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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816-David's Close Approaching Comet

816-David's Close Approaching Comet

My Catalina Sky Survey Teammate David Rankin was asteroid hunting in the constellation of Pegasus with our 60 inch telescope on Mt. Lemmon, AZ when he spotted a faint fuzzy object moving through a set...

27 Syys 20242min

303E-322-Dust Stories

303E-322-Dust Stories

Collect your own beautiful micro-meteorite sample. It is estimated that several hundred thousand pounds of left over particles from the formation of our solar system enters the Earth's atmosphere ever...

24 Syys 20242min

815-RADAR Observes Binary PHA

815-RADAR Observes Binary PHA

RADAR is very powerful tool since it can precisely measure an asteroid’s position and velocity as well as in some cases yield information about its size, shape, and other characteristics.

20 Syys 20242min

302E-321-Dangereous Comet

302E-321-Dangereous Comet

Protection against a comet strike is worth considering. Every year, if we are lucky, several comets can come close enough for the Sun to warm and us to see the beautiful changing dust and gas clouds a...

17 Syys 20242min

814-Threat of Solar Storms

814-Threat of Solar Storms

Solar storms on our home planet occur when bursts of visible, ultraviolet and other photons hit our atmosphere and/or streams of energetic particles in the solar wind interact with Earth’s magnetic fi...

13 Syys 20242min

301E-320-WOW What a Ride

301E-320-WOW What a Ride

It's a good thing this one will miss Earth. Riding the surface of the asteroid that my Catalina Sky Survey teammate Richard Kowalski recently discovered would be an incredible experience.

10 Syys 20242min

813-RADAR Observations of Close Approacher

813-RADAR Observations of Close Approacher

Astronomers measure an asteroid’s position  on the sky using a two dimensional system similar to the latitude and longitude coordinates we obtain with our GPS.  For the vast majority of asteroids, we ...

6 Syys 20242min

300E-319-Lost and Found

300E-319-Lost and Found

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 ...

3 Syys 20242min

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