Dear anybody.........

I ever wanted to know everything about blackhole in our aerospace (sic)

Try,

http://spacelink.msfc.nasa.gov/Instructional.Materials/Curriculum.Support/Space.Science/Stars.Galaxies.and.Amazing.Phenomena/Black.Holes

Vital to understanding Black Holes is Relativity, read http://www.astro.ucla.edu/~wright/relatvty.htm for a primer. You may also be interested in reading about Cosmology (a related topic) at http://www.astro.ucla.edu/~wright/cosmo_01.htm.

Theres lots of good at http://math.ucr.edu/home/baez/physics/faq.html and links to the Astronomy FAQ, also a good stopping off place.

Also try http://imagine.gsfc.nasa.gov/docs/science/know_l1/black_holes.html for an easier introduction.

If you want to know everyhting about Black Holes buy Gravity by Misner, Wheeler and Thorne.

Yelmalio - I haven't yet.