Weekend Fun (週末樂趣)

There's news that the Voyager No.1, launched by NASA some 36 years ago left the solar system and reached interstellar space from the evidence of the plasma collected by it, the plasma being ionized gas, the densest and slowest moving of charged particles in space. (similar to the  glow of neon in a storefront sign) which astro-scientists consider to be a marker of whether Voyager 1 is inside the solar bubble called the "heliosphere", which they expect to be inflated by the plasma that streams outward from our sun, or in interstellar space, surrounded by material ejected by the explosion of nearby giant stars millions of years ago. Whilst we may leave scientists to ponder the results of the data from that spacecraft which is the most distant man-made object in space and whose radio message would take 17 months (earth time or is it 17 hours?) to reach earth from the time of its original emission, we can certainly have a little fun from physicists working on astronomy. Here are some:

1.
 
Why is an astronaut like a football player?
They both want touchdowns!

2, 

If Sherlock Homes is right when he said " My dear friend Watson, it's a capital mistake to theorize before you have all the evidence.", then it follows that that astronomers are bad detectives.
                                                                                                                                               
3.

Copernicus' parents to  him: "Young man, when are you going to come to terms with the fact that the world does not revolve around you?"
  
4. 

Q: How many astronomers does it take to change a light bulb?
A: 1) Ten! One to change the bulb, and nine to argue how their own bulb gives better colour 
     2) None! Astronomers aren't afraid of the dark.

5.

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.      Galileo Galilei (1564–1642)
Alas, to wear the mantle of Galileo it is not enough that you be persecuted by an unkind establishment; you must also be right. – Robert Park, of the American Physical Society

6.

Living on Earth may be expensive, but it includes an annual free trip around the Sun.


7.

Two astrophysicists are discussing their research in a bar one evening when a drunk who has been sitting and listening in at the next seat turns and says, in a very worried voice, "What was that you just said?"
"We were discussing stellar evolution and I said to my colleague here that the Sun would run out of nuclear fuel and turn into a red giant star in about 5 billion years, possibly melting the Earth."
"Whew!" says the drunk, "You really had me worried. I thought you said 5 million."

8.
Q: How far can you see on a clear day?
A: 93 Million miles...From here to the Sun.

9.

Q: What was the name of the first satellite to orbit the Earth?
A: The moon.

10.

Q: What is more useful: the sun or the moon?
A: The moon, because the moon shines at night when you want the light, whereas the sun shines during the day when you don't need it.

11.

NASA just disclosed details why the Rover wouldn't accept any commands.
They took a picture of the Rover's built-in display which showed a Windows screen and the text, "press any key to continue".

12.
 
A theologian and an astronaut were talking together one day. The astronaut said that after reading widely in the field of religion, he had concluded that all religion could be summed up in a single phrase. "Do unto others as you would have them do unto you," he said, with a bit of smugness, knowing that his field is so much more complex.
After a brief pause, the theologian replied that after reading widely in the area of astronomy he had concluded that all of it could be summed up in a single phrase also. "Oh, and what is that?" the astronaut inquired. "Twinkle, twinkle, little star; how I wonder what you are!"

Celebrate man's achievement and in the meantime, have fun.