Posts Made By: Dick Jacobson

September 26, 2012 01:36 PM Forum: N.A.S.A.

Hubble eXtreme Deep Field!

Posted By Dick Jacobson

Does this show all the galaxies that we will EVER see in that area of the sky? Are any additional galaxies so far away that their light has not reached us (and never will, if the accelerating expansion of the universe is correct?) Have telescopes reached their ultimate limit? The James Webb Space Telescope will show these galaxies in more detail, but will it show any more?

November 27, 2012 02:19 PM Forum: Reflectors

Wow! A 1.8m reflector?

Posted By Dick Jacobson

Quote from the article:

Although the mirror has been ground and polished, it still needs its reflective coating. Clements, with Dodds' help, plans to do this with a special metallic liquid and an automotive spray gun.

What?? Has anyone heard of spray-painting a mirror?

December 24, 2012 12:50 AM Forum: Comets