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Author Question: Molly measures a Hubble constant of 20 km/sec/million light-years. Sam measures a Hubble constant of ... (Read 136 times)

Mimi

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on: Jul 27, 2018
Molly measures a Hubble constant of 20 km/sec/million light-years. Sam measures a Hubble constant of 25 km/sec/million light-years. All other assumptions being the same, which person would estimate a LARGER age to the universe?
 
  A) Sam
  B) Molly
  C) They both would measure the same age.

Question 2

There are ground-based telescopes much larger than Hubble, yet the HST still reveals the faintest objects yet seen. Explain.
 
  What will be an ideal response?


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1_Step_At_ATime

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

In space, HST can operate close to its diffraction limit without the losses due to atmospheric turbulence. This allows it to produce sharper images of fainter objects.


Mimi

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Reply #2 on: Jul 27, 2018
Thanks


1_Step_At_ATime

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Reply #3 on: Jul 27, 2018
Welcome :)


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