Astronomy & Space - August 2007

I'm an astrophysics student, but I can't wrangle a straight answer out my lecturers, books or classmates.
The observable universe is certainly finite, but what about the rest?

2007-08-22 23:47:34 · 6 answers · asked by Tunips 4

Regular black holes are the ones that have a dead end.
Two-way wormholes are black holes that serve as entry points to each other that resembles a portal.

2007-08-22 23:19:10 · 2 answers · asked by daniel_anzaldo 1

2007-08-22 23:13:56 · 4 answers · asked by Brad S 1

2007-08-22 22:15:06 · 7 answers · asked by Lorenz 1

i was surprised when a collegue told me that a plane can not fly in north or south. pls tell me what is the fact

2007-08-22 22:05:12 · 10 answers · asked by gungun 2

as this sounds like a weekness in the atmospheire is this window the hole in the ozone layer. and if so does it get bigger every time the shuttle goes through it?

2007-08-22 21:57:39 · 13 answers · asked by strongbow 3

2007-08-22 20:34:59 · 11 answers · asked by Anonymous

(I know, I do not believe they ARE here) but...................
why would they show up,
mostly in the US, (but still reported world wide)

considering they need advanced intelligence and power to travel light years to arrive at earth.

why wouldn't they don't interact with the general public ( besides one on one )

and how could military power overcome such technology and keep it hidden so successfully, with out them over powering us?

2007-08-22 19:53:36 · 5 answers · asked by Mercury 2010 7

Describe each of them and explain the types of situations or conditions ewach one is best suited to.

2007-08-22 19:18:22 · 4 answers · asked by miracle123jane 1

2007-08-22 19:09:29 · 18 answers · asked by miracle123jane 1

2007-08-22 19:03:43 · 9 answers · asked by miracle123jane 1

Considering one body to be very heavy with respect to the other, the barycentre lies almost at te centre of the heavy body. So angular momentum being conserved, we can apply kepler's second law, can't we?
If we can, then r^2 * w = constant, so w is a function of r
Now this means that if the trajectory of the small body is eliptical, its angular velocity will change with time < as r will change>. Now for change in angular velocity we need angular acceleration. Angular acceleration will be caused due to some torque acting on the body.
How can gravitational force, being radial, produce a torque?
Where am I going wrong?

2007-08-22 17:23:54 · 5 answers · asked by astrokid 4

Scientist say in a few million eons from now, the expansion of the universe is so great, that the distance between atoms will be light years. Now scientists blame this on a thing called dark matter expanding. I disagree. Could it be possible that some parts of the universe may contain more mass and be pulling more of the universe towards it, warping space and pulling it further away from other clumps of great mass that generate great amounts of gravity. Sorta like how pepper clumps in groups on the surface of water and pulls other specks from other clumps. This make sense? if yes, do you agree or disagree? Why?

2007-08-22 16:42:02 · 9 answers · asked by PeguinBackPacker 5

2007-08-22 16:39:48 · 6 answers · asked by Monica 2

Why is it the there is only one direction in time the one that we are aware of the arrow seems to move forwrd only.
And please dont say it will start to reverse when the universe collapses as I think that is nonsense, but there again who knows.
what really is time..?

2007-08-22 16:04:51 · 10 answers · asked by emc.squared 1

2007-08-22 15:30:46 · 9 answers · asked by Caysie101 5

plz tell me

2007-08-22 15:03:05 · 7 answers · asked by Anonymous

ok i mean like insted of going to left or right you go down whats there?

2007-08-22 14:58:24 · 8 answers · asked by penguin1597 1

ive been randomly thinking and i know little to none about astronomy but i have been having weird thoughts about planet earth sinking and us having to move to a different planet. any thoughts? please help? how much longer do you think everything will be okay on earth etc. ?

2007-08-22 14:54:11 · 6 answers · asked by Anonymous

Just in theory for God sakes.
Don't give me its impossible for the earth to suddenly stop! I know that.
I was thinking it has something to do with a law or relation of interia. That relation being....?

2007-08-22 14:34:58 · 9 answers · asked by Anonymous

2007-08-22 14:21:40 · 9 answers · asked by Frankie 4

2007-08-22 13:48:21 · 7 answers · asked by ExpERT. 3

ok, their are many debates about if we went to the moon or if it was a hoax. well first off a reason to fake it was that the first to the moon would prbly win the cold war and many predicted if we lost the cold war it would be the downfall of the US. also their is a radiation belt that surrounds the earth (Van allen Radiation belt) and protects us from the sun. it will also kill any who pass without proper protection. and at the time of the space race with the current technology we would need 6 feet of lead to protect the space craft (which was not their). another little question is that just a couple of months ago it was announced that we would go back to the moon between 2017 and 2020 by NASA. and if we went to the moon in the 60's and 70's why wait 10 years to go back why dont we use the same space craft. no one died on the trip to the moon. so why not use the same technology, unless the technology didnt exists and we faked it with a couple of cameras. what are your opinions.

2007-08-22 13:03:58 · 17 answers · asked by ant_szeltner 2

2007-08-22 13:03:31 · 14 answers · asked by Anonymous

2007-08-22 12:47:59 · 7 answers · asked by red 2

heres a scientific sentence about earth's forming and i want to know if it meant that earth was smashed into another planet or what!: Earth was pretty young, it smashed into a planet-size body and it’s surface temperatures soared above 10,830 degrees Fahrenheit!

2007-08-22 12:13:26 · 4 answers · asked by chezplz 2

Short ansers please!

2007-08-22 12:02:42 · 13 answers · asked by Hold_your_color 2

2007-08-22 12:00:34 · 9 answers · asked by yahuforever 2

When it comes to space and planets?

2007-08-22 11:51:20 · 7 answers · asked by DJ C 4

2007-08-22 11:39:18 · 5 answers · asked by Wucherer1968 2