Narrator: This is Science Today. While there is evidence that black holes do exist, a lot about these forces of gravity remain a mystery. Astronomer Alex Fileppenko of the University of California, Berkeley says a new instrument on the Hubble Space Telescope, called a spectra graph, may provide some answers...
Fileppenko: There has been a spectra graph in the Hubble these past six years, but it could only take the spectrum of one star at a time, or one small region of the sky at a time.
Narrator: The new spectra graph, installed by astronauts aboard the Space Shuttle Discovery, has a broader range and Fileppenko says, will greatly help scientists track down elusive black holes in the galaxy.
Fileppenko: We’ve had a number of colleagues who have made very important first steps in this direction 132 and the information they already have strongly suggest that there’s a black hole there. But now we can do this much more efficiently, much more quantitatively and for far more galaxies.
Narrator: For Science Today, I’m Larissa Branin.