Replies

Previously in this thread:

"...there is evidence to that effect..."

"Like what? (Try not to wave your hands this time.)"

We are talking about processes that take far, far longer than the lifespan of any living thing here on this planet, and range over distances that are literally astronomical. If you are the sort that trots out the "Where's the evidence?" argument because no living person can say, "I personally observed that, and I can replicate it here in a petri dish.", then you are not being reasonable with respect to the subject of astronomy.

So, what evidence? Telescopic observations of solar system sized accretion discs. Telescopic observations of what appear to be proto planets disrupting other such "dust discs". Following along the same lines as a geologist would, after observing water eroding rock and soil, that huge canyons can form, even if the geologist would never live long enough to PERSONALLY watch it happen.

Harping about "What evidence?" to astronomers, as if they could satisfy you only by bottling a star and handing it to you does not make your arguments sound reasonable.

Following along the same lines as a geologist would, after observing water eroding rock and soil, that huge canyons can form

BTW, it's obvious that huge canyons can form, or have been formed, because we see them. How this happened is a little less obvious. Anyone who believes the fairy tale about how the Grand Canyon was formed by the ground rising up around this little river just isn't observing. (Hint: Look at the side canyons.)

ML/NJ

I recall from high school chemistry or physics that the boiling point of water gets lower with decreasing pressure. I don't understand how water could remain liquid, or ice could remain solid, in the vacuum of outer space.

Wouldn’t the water all boil off, similar to being "freeze dried"?

Can anyone explain the phenomenon?

Thanks