A scientist uses a telescope to observe the two stars. Which of these is the best conclusion about the images of the two stars a

Question

3 years ago

14

A scientist uses a telescope to observe the two stars. Which of these is the best conclusion about the images of the two stars a

s seen by the scientist? A: The images show the stars as they existed 7 years ago. B: The images show the stars as they existed 15 years ago. C: The image of 61 Cygni is more recent than the image of Proxima Centauri. D: The image of Proxima Centauri is more recent than the image of 61 Cygni.

Biology

2 answers:

patriot [66] · Answer 1 · 2022-12-19T22:17:35+03:00

patriot [66]3 years ago

7 0

Answer:

B) The images show the stars as they existed 15 years ago

Explanation:

Some 15 billion years ago the universe emerged from a hot, dense sea of matter and energy. As the cosmos expanded and cooled, it spawned galaxies

Alik [6] · Answer 2 · 2022-12-19T19:51:13+03:00

Alik [6]3 years ago

5 0

Answer:

Astronomers use NASA's Spitzer Infrared Telescope and Chandra X-ray Observatory to see young stars, which emit a lot more high-energy radiation than their older versions.

Explanation: