This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are telescopes sometimes called time machines? A) because the author, H.G. Wells, used the ... (Read 57 times)

Starlight

  • Hero Member
  • *****
  • Posts: 567
on: Jul 27, 2018
Why are telescopes sometimes called time machines?
 
  A) because the author, H.G. Wells, used the term to describe telescopes in a book
  B) because some of the oldest telescopes are still in use today
  C) because observations of distant objects reveal them as they were in the past
  D) because astronomers can use telescopes to see the Milky Way as it was when it was much younger
  E) It's a journalistic misnomer: you cannot travel into the past or the future.

Question 2

Why is Europa considered a good candidate for the possible existence of life?
 
  A) Strong evidence suggests that it has a deep, subsurface ocean of liquid water.
  B) The Galileo spacecraft found strange seasonal changes on its surface that look like they could be due to life.
  C) It is located within our Sun's habitable zone.
  D) It has a thick atmosphere with a surface pressure greater than that on Earth.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tuwy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


Starlight

  • Member
  • Posts: 567
Reply 2 on: Jul 27, 2018
Wow, this really help

coreycathey

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

DNA replication is the basis for the perpetuation of life through time DNA replication is the basis for the perpetuation of life through time
The anterior pituitary is sometimes called the master gland because it secretes many hormones that r The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i
Diphtheria. The bacteria that cause this disease, called Corynebacterium diphtheriae, proliferate in Diphtheria. The bacteria that cause this disease, called Corynebacterium diphtheriae, proliferate in
Middle adulthood can bring large-scale changes in lifestyle and interests, as illustrated by this ph Middle adulthood can bring large-scale changes in lifestyle and interests, as illustrated by this ph
Increased amounts of "screen time" are contributing to decreased amounts of physical ... Increased amounts of "screen time" are contributing to decreased amounts of physical ...
Video: How does asthma work?And How do you treat asthma?

For a complete list of videos, visit our video library