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520-Comet Lemmon
An interstellar traveler visits our neighborhood on its tour of the Milky Way.
7 years, 5 months ago
![7E-16-The Discovery of Comet P:2014 A2 [Hill]](https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/1fd181e9a8e27adaf5d6776eadc136b9.jpg)
7E-16-The Discovery of Comet P:2014 A2 [Hill]
Have you ever wondered how a comet is discovered and named?
7 years, 5 months ago
519-Greg's Comet
The discovery of a Jupiter family comet whose fate is to become a garden variety main belt asteroid.
7 years, 5 months ago
6E- 15-Suppose An Asteroid Is On A Collision Course With Earth
Over geologic times, the impacts of objects from space have produced significant changes to our planet's biosphere. Earth threatening asteroids pres…
7 years, 5 months ago
518-Busy Night
On Halloween night while observing with the Catalina Sky Survey's 60 inch telescope on Mt. Lemmon, Arizona I discovered 21 space rocks streaking thro…
7 years, 5 months ago
5E-13-The Tunguska Event
The Tunguska [ Tun·gu·ska] event occurred on June 30, 1908. It appears to have been caused by a small asteroid or comet which exploded 3-6 miles abov…
7 years, 5 months ago
517-Close Again
As asteroid hunters equipment and skills continue to improve we will be able to find and track some of these tiny impactors and perhaps be able to su…
7 years, 5 months ago
4E-8-A Bad Day for the Dinosaurs
Scientific evidence suggests that it was a bad day for non-avian dinosaurs when a large asteroid or a comet crashed into the Earth about 66 million y…
7 years, 5 months ago
516-Space Weather
Space is not all that far away. If a powerful solar eruption in 2012 had happened a week earlier, the blast of radiation would have caused wide spre…
7 years, 5 months ago
3E-3-Finding Earth Approaching Objects
Using 2 telescopes near Tucson Arizona, the NASA funded, Catalina Sky Survey searches for Earth Approaching Objects. The method is to take 4 images o…
7 years, 6 months ago