« previous next »

Author Question: Describe two ways of detecting extrasolar planets. What will be an ideal ... (Read 52 times)

natalie2426

  • Hero Member
  • *****
  • Posts: 524
on: Jul 27, 2018
Describe two ways of detecting extrasolar planets.
 
  What will be an ideal response?

Question 2

Describe some of the results from the Cassini/Huygens mission to Saturn and its moons.
 
  What will be an ideal response?


shayla

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 27, 2018
Answer to Question 1

Most are found by their gravity pulling their stars enough to create observed Doppler shifts as the planets orbit their stars. A few have also been seen to transit the disks of their stars, with drops in the star's light seen in photometers.

Answer to Question 2

Cassini has found a surprisingly active geology on many Saturn moons, e.g. Enceladus. The Huygens probe landed on Titan and photographed hills, valleys, and possibly rivers. It showed pictures of ice rocks on the surface of the planet and its soft landing suggested a slushy ice/rock surface. Radar mapping of Titan showed what appear to be lakes of liquid methane and ethane and Cassini has also photographed Saturn's rings and the gap moons in great detail.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Different ways that gated channels can be opened. Different ways that gated channels can be opened.
The Two New Strands Form in Different Ways The Two New Strands Form in Different Ways
Detecting Emotions in Facial Expressions Detecting Emotions in Facial Expressions
Protein methylation protects proteins in two ways Protein methylation protects proteins in two ways
Orbital Motion of Earth and Other Planets Orbital Motion of Earth and Other Planets
Planets Planets
Video: Appendicitis Animation

For a complete list of videos, visit our video library