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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.
Published on 1 year, 3 months ago
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 …
Published on 1 year, 3 months ago
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 f…
Published on 1 year, 3 months ago
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.
Published on 1 year, 3 months ago
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…
Published on 1 year, 3 months ago
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…
Published on 1 year, 3 months ago
812-The Benu Files I
A recent scientific paper characterizes the 123 grams of the regolith or surface material from the asteroid Bennu which NASA’s OSIRIS-REx spacecraft brought back to Earth after a successful 7 year sa…
Published on 1 year, 3 months ago
299E-318-Caves of Mars
Presently the surface of Mars is very dry and any liquid water that reaches it quickly boils away since the martian atmospheric pressure is what you could experience in your space suit 30 to 50 miles…
Published on 1 year, 4 months ago
811-Martian Meteroite Hunters
Perhaps someday humans will travel to Mars, walk the surface of the red planet, and collect meteorites. Recent studies suggest Mars to be an exciting place to find ancient relics of our solar system
Published on 1 year, 4 months ago
298E-317-Psyche Water
The asteroid Psyche may be one of the most expensive pieces of real estate in the solar system. It is a small world about 116 miles in diameter and is composed of almost pure nickel-iron metal. It is…
Published on 1 year, 4 months ago