Starship Asterisk*

Sounds like another ideopathic version of the Curse of Bill. Most people who followed Bill's advice and got all their sofware from a single vendor, i.e., Windows, Internet Explorer, Outlook, and Office, get used to regular inexplicable behavior from their computers, plus weekly security patches (not...

World ends at ten, film at eleven

Ha ha ha ha ha... that is classic. Heh, heh. My laugh of the day.

What utter rubbish! LINEAR, NEAR, NEO and a zillion other amateurs and professionals have already charted the orbits of SW-3 and its various fragments, and none is going to come within several million kilometers. The author is a psychic quack. God help you if you have time to read even just that one...

As I recall, in interstellar space they estimated something like a few hundred particles (atom/ions or molecules) of hydrogen and helium per cubic meter, and a few particles of dust, except in nebulae and other "cloud" structures. Intergalactic space is estimated to be even more of a void,...

But! how much is man compared to the earth cycles and sun cycles. I do not think anyone knows. I have seen research indicating that a single major volcanic eruption dwarfs the annual man-made production of greenhouse gases, and there are many other factors at work, both natural and man-made, such a...

I do not claim to know to what extent human activity contributes to global warming, but global warming and rising sea levels are well documented, along with melting of Greenland and Antartic ice (the only big sources of rising sea levels) and more extreme weather. A nice general interest summary app...

Hey, I sent my question to NASA and got an expert reply (quoted below) many thanks to Dr. Donald K. Yeomans, NASA/NEO program manager at JPL: Long-period comets in the near-Earth space represent only 1% of the population of near-Earth objects. The other 99% are near-Earth asteroids. While comets do ...

Anyone ever discuss a weakness of using apparent optical motion to identify NEOs? If the initial apparition of a long-period or parabolic object was on a collision course, it would exhibit NO apparent motion and would not be detected until its change in apparent magnitude became obvious. (Anything n...