Astronomy & Space - March 2007

I have an ETX70 that came with two eyepieces(25mm&9mm). I can barely see anything other than the moon. Mars is just a dot with the 9mm. What can I get to see more? Is there anything that I can read to help me learn more(in plain english)?

2007-03-26 09:21:06 · 1 answers · asked by jds 2

2007-03-26 09:07:31 · 11 answers · asked by free thinker 1

does anyone have any proof that any other person in history had mentioned this idea?

or was it found in this 20th century that we have more than the one we live in.

2007-03-26 08:59:24 · 7 answers · asked by Anonymous

The would the shadows be the shortest on two days of the year?

2007-03-26 08:56:38 · 4 answers · asked by JT 2

For how many years could a 100-watt bulb burn, using the energy produced by the annihilation of 1 gram of matter? (A 100-watt bulb uses 10^9 ergs/sec; 1 year ~= 10^7 sec.)

2007-03-26 08:56:08 · 5 answers · asked by stephen445 1

Assume that the lifetime of the sun is 10 billion years. What will be the lifetime of a star of 4 solar masses?

2007-03-26 08:53:17 · 1 answers · asked by stephen445 1

You are a cosmic engineer asked to provide illumination for a certain region of stars. You are given 10 solar masses of hydrogen to make into stars. How should you divide up the hydrogen if you want to illuminate the vicinity a) brightly? b) for a long time?

2007-03-26 08:50:18 · 4 answers · asked by stephen445 1

I saw a BBC documentary, which showed that our solar system rises and falls along the galactic plane, like the motion of a horse on a merry go round. So what is that cyclic motion 'tethered' to? Is our Solar system orbiting a black hole? A Brown Dwarf maybe(like Nemesis?) Is there a common accepted answer to this in the scientific community?

2007-03-26 08:47:56 · 7 answers · asked by xooxcable 5

Show that a star of 10,000 times the luminosity of the sun is 1,000,000 times more observable than a star of solar luminosity

2007-03-26 08:47:16 · 2 answers · asked by stephen445 1

2007-03-26 08:45:47 · 4 answers · asked by stephen445 1

2007-03-26 08:20:37 · 9 answers · asked by aliamir71 1

2007-03-26 08:03:16 · 10 answers · asked by Mohammed H 1

Quantum mechanics describes the bizarre rules of light and matter
on atomic scales. In that realm, matter can be in two places at once.
Objects can be particles and waves at the same time.
And nothing is certain -- only probable or improbable.

This improbable feat -- stopping light -- was accomplished by two teams.
One was led by Ron Walsworth, a physicist at the Harvard-Smithsonian Center for Astrophysics, and the other by Lene Hau of Harvard University's Department of Physics. Walsworth's group used warm rubidium vapors to pause their laser beam; Hau's group used a super-cold sodium gas to do the same thing.

http://science.nasa.gov/headlines/y2002/27mar_stoplight.htm

2007-03-26 07:54:46 · 5 answers · asked by socratus 2

WHICH IS THE PRINCIPAL THREAT FOR THE HUMANITY?

2007-03-26 07:53:14 · 9 answers · asked by Chris 6

1. Have we ever tried sending anything into one with a tracker on it?
2. How did we find out about them?
3. If it sucks up anything around it they eventually eat up the entire universe?
4. If there is more than 1 black hole and they do in fact start sucking everything up what happens if they like go up against each other?
and then a friend of mine wants to know...
5. how do we know we aren't in one?

2007-03-26 07:42:16 · 11 answers · asked by Alex W 2

2007-03-26 07:30:57 · 39 answers · asked by Anonymous

2007-03-26 07:26:12 · 8 answers · asked by Jessy 1

2007-03-26 07:01:37 · 13 answers · asked by chris b 1

2007-03-26 06:55:25 · 6 answers · asked by alma a 1

2007-03-26 06:37:30 · 7 answers · asked by banzaiii 4

2007-03-26 06:19:14 · 6 answers · asked by honeysistagirl 2

Ther are skeptics or non belivers that say that people did not actaully reach the moon instead it was done in a movie studio.
They say this because America did not have the tecknology to do it and America did it because they did not want to be left outside because Russia put the first man in space. So america and russai were competing. What do you belive?

2007-03-26 06:15:00 · 15 answers · asked by Dr. J 1

i did my research but to no avail. i just want to know whether is there anything in the middle of our milky way galaxy. why is it that most galaxies are spiral? is it true that there is a blackhole in teh middle of our galaxy? if it is true then when will our solar system be swallow by the blackhole?

2007-03-26 06:09:11 · 12 answers · asked by Young Einstein 2

I'm signed-up to receive daily photographs that NASA posts on their web site everyday. Occassionally its an image taken of the Martian surface by the Exploration Rover Spirit or the Opportunity Rover. I'm wondering if a human at NASA's HQ actually remotely drives it like a video game or if it has a program that tells it what to do. What an awesome job that would be if it was a human driving it.

2007-03-26 05:31:10 · 6 answers · asked by OjoNegro 2

2007-03-26 05:13:25 · 3 answers · asked by Anonymous

The sky is blue because

A) the atmosphere transmits mostly blue light.

B) molecules scatter blue light more effectively than red light.

C) the atmosphere absorbs mostly blue light.

D) molecules scatter red light more effectively than blue light.

E) the Sun mainly emits blue light.

i know its either b or d, please explain

2007-03-26 05:00:50 · 7 answers · asked by Diggler AKA The Cab Driver 1

2007-03-26 04:33:41 · 12 answers · asked by Anonymous

I think that, for example Area 51, is a secret base for advanced extraterrestial experiments and technologies? What is going on? Somehow the U.S. had to make contact with intelligent life from another planet and use its technologies for its advanced military warfare. What do you think about it?

2007-03-26 03:57:10 · 14 answers · asked by Cipher 3

2007-03-26 03:31:02 · 8 answers · asked by jasonschielke 2

2007-03-26 03:19:11 · 9 answers · asked by Sunil P 1