How is light used to study space?

2 answers:

8 0

We use the speed of light to calculate how far apart the stars are, and to estimate the size and age of the universe. Speed-of-light calculations are what confirmed that the universe is expanding. And because light takes a certain amount of time to get here, when we look at the stars, we're literally looking back in time, to what the universe was like millions of years ago

devlian [24]3 years ago

7 0

We use the speed of light to calculate how far apart the stars are, and to estimate the size and age of the universe. Speed-of-light calculations are what confirmed that the universe is expanding. And because light takes a certain amount of time to get here, when we look at the stars, we're literally looking back in time, to what the universe was like millions of years ago:

"The speed of light is particularly important in astronomy. Due to the vast distances involved it can take a very long time for light to travel from its source to Earth. For example, it takes 13 billion years for light to travel to Earth from the faraway galaxies viewed in the Hubble Ultra Deep Field images. Those photographs, taken today, capture images of the galaxies as they appeared 13 billion years ago (near the beginning of the universe)."

You might be interested in

What are the differences between first-generation od and second-generation od?

luda_lava [24]

First Generation OD (organizational development) focused on the individual organizational member's behavior and interpersonal relationships as it relates to productivity and efficiency. Second Generation OD focuses on the future of the organization and requires that the leader do a lot of planning and coordinating to lead the organization in the best possible direction.

7 0

2 years ago

Borrelia is classified as a spirochete because it A) Is aerobic. B) Possesses an axial filament. C) Is a rod. D) Is a pathogen.

Mazyrski [523]

A because that is aerobic

6 0

2 years ago

The male and female reproductive systems mature as the_________ system develops.

Diano4ka-milaya [45]

Answer:

Reproductive

Explanation:

4 0

2 years ago

If no ATP is present in the muscle cell what would be the likely result?

Elden [556K]

Answer: c. The myosin would not be able to let go of the actin

Explanation:

Muscles consists of two proteins called actin and myosin and responsible for muscle contraction.

Myosin is ATP dependant and when ATP binds to it, it is able to release the actin.

This will allow the actin and myosin to seperate from each other thus leading to muscle contraction

5 0

2 years ago

What is the complementary strand for the following DNA segment? C A A G T T C G A T G A

zhuklara [117]

Answer:

GTTCAAGCTACT

Explanation:

studied

4 0

3 years ago