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Author Question: Why were the Russian Venera spacecraft so important to our understanding of Venus? What will be ... (Read 12 times)

asd123

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on: Jul 27, 2018
Why were the Russian Venera spacecraft so important to our understanding of Venus?
 
  What will be an ideal response?

Question 2

How were the rings of Uranus discovered? How have they since been imaged from Earth better?
 
  What will be an ideal response?


Koolkid240

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

They were the first spacecraft to soft land on the planet and send images of the surface back to Earth.

Answer to Question 2

Uranus passed in front of a star, and the star's light fluctuated before and after the occultation. These rapid changes were mapped by photoelectric photometry to map the rings. Later observations found them brighter in the infrared, for as the dark material absorbs sunlight, the absorbed energy heats up the rings particles to the point that in the infrared, they are hotter than the planet's surface clouds.


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