This topic contains a solution. Click here to go to the answer

Author Question: What is the radio window astronomers use to search for alien transmitted communication? What is this ... (Read 84 times)

Kthamas

  • Hero Member
  • *****
  • Posts: 546
What is the radio window astronomers use to search for alien transmitted communication? What is this window nicknamed?
 
  What will be an ideal response?

Question 2

Why couldn't life have originated on any of the Jovian planets?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

epscape

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

Between 1cm to 30 cm wavelengths is a radio window that is open for communication. Even this restricted window contains millions of possible radio-frequency bands and is too wide to monitor easily, but astronomers may have thought of a way to narrow the search. Within this broad radio window lie the 21-cm spectral line of neutral hydrogen and the 18-cm line of OH. The interval between those lines has especially low background interference and is named the water hole because H plus OH yields water.

Answer to Question 2

Jovian planets do not have solid surfaces for water droplets to create organic rich oceans, and the strong atmospheric currents would quickly carry away any reproducing molecules into the hot, inhospitable regions of each respective planet.





 

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

For a complete list of videos, visit our video library