A reflection nebula is a cloud of interstellar dust that becomes visible due to the light from nearby stars reflecting off its particles. Unlike emission nebulae, reflection nebulae do not emit their own light but shine by scattering the light of nearby stars.
Source: science.nasa.gov

02/10/2009

29/09/2009

26/08/2009

02/08/2009

15/07/2009

08/07/2009

07/07/2009

15/06/2009

10/06/2009

05/06/2009

30/05/2009

21/05/2009

25/04/2009

18/04/2009

10/03/2009

11/02/2009

30/01/2009

14/01/2009

25/12/2008

09/12/2008

26/11/2008

31/10/2008

24/10/2008

23/10/2008

25/06/2008

03/06/2008

08/05/2008

08/04/2008

18/03/2008

06/03/2008