why is looking through a powerful telescope like looking back through time?

  1. 👍 0
  2. 👎 0
  3. 👁 90
asked by dia
  1. Because the light you are seeing was emitted a very long time ago.

  2. If you were to see light from a star that is 1,000.000 light years away, you would see the star as it looked 1,000.000 years ago (by the time you get to see it, it might not even exist anymore.)

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    Reflecting telescopes are popular because they're A. more durable than a refracting telescope. B. easier to build than a refracting telescope. C. smaller than a refracting telescope. D. more powerful than a refracting telescope i

    asked by Dave on February 25, 2015
  2. Physics

    the hubble telescope has a mass of 1.5 x 10^4 kg and its orbiting the earth 596 km above the ground surface.the earths radius is 6.38 x 10^3km. CAlculate a)the force of gravitation on the telescope due to the earth's pull. given:

    asked by johnny on October 29, 2007
  3. to ms.sue-writing prpject

    plzzz check: for my birthday, i asked for an MP3 player, but instead, my parents got me a telescope. the telescope was old and rusty, so I put it aside. when i finished dinner, I took the telescope with me to my room. i dusted and

    asked by Celest on June 22, 2012
  4. to ms.sue-writing project part 1

    Narrative Prompts (choose only one) • Your aunt arrives with a huge box. You hear strange noises coming from the box. Write a story about what’s inside. • Although you asked for an MP3 player for you birthday, your parents

    asked by Celest on June 22, 2012
  5. Astronomy/History

    I am doing a project on Isaac Newton. Ive looked at his impact on the development of the telescope, in particular, the reflecting telescope. Ive researed this a bit and have found conflicting dates. Some sources say he built the

    asked by Kurst on March 8, 2008
  6. Physics Help Please --- Telescope

    An astronomical refracting telescope is made from two lenses. the objective lens has a focal length of 114 cm, and the eyepiece lens has a focal length of 17 cm. a) What is the total length of the telescope? b) What is the angular

    asked by Tanya on May 2, 2015
  7. physics-lenses

    a certain Galilean telescope has a magnification of 2 times. if the focal length of the objective lens is 60 cm, how long is the telescope? thanks :))

    asked by thalia on March 8, 2014
  8. Physics

    Determine the resolving power of a telescope,if the objective of a telescope has a diameter of 300mm.The mean wavelength of the light from Stars is 6*10^-7m.

    asked by Evans on August 16, 2018
  9. Algebra

    The Hubble Space Telescope can see stars and galaxies where brightness is 1/50 of the faintest objects now observable using ground-based telescopes. Use the fact that the brightness of a point source, such as a star, varies

    asked by Mickey on November 18, 2014
  10. astronomy

    whereas a reflecting telescope uses to gather light refracting telescope uses

    asked by caleb on February 6, 2017

More Similar Questions