Short Answer
All large astronomical telescopes built since the start of the 20th century have been _______________ telescopes.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q48: What must be used to maintain the
Q49: What is the function of the receiver
Q50: Which power of a telescope reveals fine
Q51: A spectrograph spreads out light according to
Q52: Why aren't optical or radio telescopes used
Q54: Light gathering power and resolving power both
Q55: Cosmic rays are made of photons.
Q56: A optical distortion of refracting telescopes called
Q57: One way to measure and compare the
Q58: The Chandra observatory uses _ mirrors in