« previous next »

Author Question: Describe two ways of detecting extrasolar planets. What will be an ideal ... (Read 60 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?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Different ways that gated channels can be opened. Different ways that gated channels can be opened.
Two equivalent ways of drawing a phylogeny Two equivalent ways of drawing a phylogeny
Zone for Habitable Planets Zone for Habitable Planets
Describe the functions of fat in the body Describe the functions of fat in the body
Reflectivity of Inner Planets Reflectivity of Inner Planets
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Video: Stress and Immune System Animation

For a complete list of videos, visit our video library