Look at this meteor or comet or W/E skipping across the atmosphere. Nasa says the NEOWISE mission just found umptteen numbers of asteroids and 20 new
comets. Now their admiting a giant gaseous body? Is part of our solar system. I think we're being bombed from outer space.
edit on 14-2-2011 by randyvs because: (no reason given)
That was awesome to watch. Is that really what a comet looks like? I've never seen anything like it. Good video! Lots of strange happenings in
our skies lately, huh? Can't wait to see what's next. Good job
Where was this video from first...
Second, I thought it was pretty in a new age kind of way up until I saw it "poof" off some of the gases, maybe something broke off? Or it went to a
second stage? Looked like it was in the atmosphere the way the gasses were expanding afterward.
Third, mega extra bonus points for it being a YouTube clip of something that didn't have moic that makes the ears bleed or someone speaking through a
Definitely looks like some sort of a rocket launch to me. Very cool video, whatever the case.
A comet doesn't appear to streak across the sky like that. They are way too far away in space, still, when they become visible. The ones I've seen
looked more like a fuzzy smudge that is fixed in the sky, often for many nights or even a couple of weeks straight. From night to night it will
appear to be in different parts of the sky, and I guess if you watched it for one night you could see it move in relation to the stars in the sky, but
I never bothered to watch one for that long.
edit on 2/14/2011 by LifeInDeath because: (no reason given)
Definitely a rocket launch. The event at 0:34 is the rocket dropping its first stage while the second stage ignites.
Notice the smoke trail at the beginning: it's thin down low and then becomes wider. This is because when a rocket first launches from the Earth's
surface, the thick atmosphere causes the exhaust to form a long, hot, narrow column. As the air thins with altitude, the exhaust plume spreads-out
more and more. You can see the same effect it in this video:
In this clip, the expansion starts to become obvious at T+1:40.
At T+2:20 the air becomes so rarified that the exhaust is no longer incandescent as it leaves the nozzles, and it just appears sooty (the first stage
fuel, in this case, is kerosene).
At T+2:43. staging occurs. In this case, the second stage fuel is liquid hydrogen, so we no longer see any sooty exhaust after staging (the Space
Shuttle main engines use the same stuff, and leaves no visible exhaust).
The rocket in the OP video apparently uses the same or similar fuel in the first & second stage, since the exhaust of both are visible. Note that the
launch occurs in twilight, so the rocket rises high enough for the sun to light-up the exhaust against the dark sky.
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