Electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays. Ultraviolet observations are crucial for studying hot astronomical objects like accretion disks around black holes.
Source: science.nasa.gov

07/08/2006

03/08/2006

17/07/2006

10/07/2006

11/06/2006

06/06/2006

26/03/2006

20/10/2005

30/09/2005

14/08/2005

22/02/2005

19/02/2005

14/02/2005

30/12/2004

28/11/2004

10/10/2004

25/09/2004

12/07/2004

20/06/2004

05/05/2004

24/04/2004

22/12/2003

18/04/2003

18/03/2003

21/12/2002

02/11/2002

08/05/2002

28/04/2002

21/03/2002

02/03/2002