Which type of telescope is most useful for detecting a star that emits very long electromagnetic waves?

Because light from stars can take billions of years to reach Earth, astronomers can use it to

Why do telescopes work better at high elevations or in space?

The mission of the Apollo program was to

Which is a benefit of the space program?

In the future, scientists hope to

Which condition is NOT considered necessary for life on other planets?

The mission of the Kepler telescope is to

What part of the electromagnetic spectrum does a reflecting telescope use to produce an image?

What must be true of a satellite?

Scientists think Mars might support life because of the presence of

Which statement best describes the relationship between rockets and satellites?

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