An image in which colors are assigned to represent specific wavelengths of light—often outside the visible range—to highlight physical processes or chemical compositions in astronomical objects.
Source: hubblesite.org

30/09/2001

07/06/2001

04/06/2001

21/05/2001

02/05/2001

08/12/2000

07/09/2000

20/07/2000

12/07/2000

12/05/2000

03/05/2000

06/03/2000

23/12/1999

22/09/1999

08/07/1999

02/07/1999

23/04/1999

05/02/1999

21/12/1998

22/10/1998

16/06/1998

22/04/1998

13/01/1998

10/09/1997

13/11/1996