Widgetized Section

Go to Admin » Appearance » Widgets » and move Gabfire Widget: Social into that MastheadOverlay zone

A Telescope as Sharp as Hubble — but on the Ground

Posted by

Source: Time

Most people think that the Hubble Space Telescope (HST) is the most powerful stargazing system in the world. It’s understandable, given the astounding images and spectacular science the instrument has been delivering since it went into full operation back in 1993.

(VIDEO: 30 Years of the Space Shuttle: What Now?)

In fact, though, the Hubble is relatively puny. The mirror at its heart is just 7.9 ft. (2.4 m) across, which gives it only about one-seventeenth of the light-gathering power of the 33-ft. (10 m) twin Keck telescopes, atop Hawaii’s Mauna Kea. The HST’s big selling point is its super-sharp vision. Hubble orbits high above the Earth’s atmosphere, a turbulent sea of constantly roiling air that makes the stars twinkle and blurs the vision of ground-based telescopes. A Keck in space would be the ideal solution — if it wouldn’t be impossibly expensive to build, and if there were any way of wrestling such a gigantic piece of hardware into orbit.
Read more:

The featured image is of Keck telescope.

Posted by on February 6, 2012. Filed under Astronomy,Science. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>