Satellites, télescopes, images

Wide field image of star cluster Messier 15 (ground-based view)

When galaxies collide

Where Did That Black Hole Come From

Wide view of the Antennae galaxies [ground-based]

Wide Field View of M13

White dwarfs in globular cluster M4

White Dwarfs in NGC 6397 (Hubble)

Where Did That Black Hole Come From

Wide view of the Antennae galaxies (ground-based image)

White Dwarf Yields Key to Planet’s Mass