Astronauts to undertake fourth walk to repair Hubble telescope

US astronauts on Sunday will undertake a fourth in a series of five daily spacewalks intended to equip the 19-year-old Hubble Space Telescope for at least another five years of valuable scientific work.

If you want to include this story in your blog, copy and paste this formatted text:

<p><a href="http://www.physorg.com/news161749636.html">Astronauts to undertake fourth walk to repair Hubble telescope</a></p> <p> US astronauts on Sunday will undertake a fourth in a series of five daily spacewalks intended to equip the 19-year-old Hubble Space Telescope for at least another five years of valuable scientific work.</p>