... If a comet rich in water were to hit the moon (as may happen--a small comet may have hit Siberia in 1908), the Moon would have a watery atmosphere for a thousand or maybe a million years, but it won't last. ...
... Planetary line-up and the sunspot cycle . What are comet tails made of? . If light speed sets the limit, why fly into space? ... This lets an astronomer state that a nova, or a comet, appeared in (say) Aries, or assign some distant galaxy to the ...
... What are comet tails made of? . If light speed sets the limit, why fly into space? ... like that apparently happened to Comet Shoemaker Levy, whose fragment crashed onto ...
... At the end of 1983, however, the magnetospheric probe ISEE-3 (International Sun-Earth Explorer 3) pulled away from Earth towards comet Giacobini-Zinner, and some time later was sufficiently far from Earth to intercept such CMEs. ...
... What are comet tails made of? . If light speed sets the limit, why fly into space? ... like that apparently happened to Comet Shoemaker Levy, whose fragment crashed onto ...
... He used to say "I am familiar with the pathways of the heavens as I am familiar with the pathways of [my home town] Nehard'a--except for the comet-star, I don't know what it is." ...
... Planetary line-up and the sunspot cycle . What are comet tails made of? . If light speed sets the limit, why fly into space? ... This lets an astronomer state that a nova, or a comet, appeared in (say) Aries, or assign some distant galaxy to the ...
... Thirdly, recent studies of some meteorites, which possibly were produced by the collision of a comet or other cosmic voyager with Mars, shows that there are some inclusions in these meteorites that are very similar to fossilized microbes. ...
... Stories and extensions: The "Vomit Comet" airplane used by NASA to simulate weightlessness; "artificial gravity" in a rotating space station; the swirl of draining sinks and of storms, north and south of the equator. ...
... evidence for the solar wind came from comet tails, whose behavior had been explained ... and solar wind pressure combine to push comet tails away from the sun--sunlight the ...