Before -1990, our view of space came from ground-based light telescopes.

The story of designing, building and operating the most powerful ground-based telescopes on the planet.

These techniques can dramatically increase the resolution of ground-based telescopes.

Future ground-based telescopes may be even better than the Hubble.

Through ground-based telescopes, such distant galaxies showed up at best as dim points of light.

From ground-based telescopes, the two galaxies look like a single blob.

This was the first time an asteroid moon had been discovered by a ground-based telescope.

For large ground-based telescopes, the resolution is limited by atmospheric seeing.

The other is an $80 million ground-based telescope that would be the first designed specifically for infrared observations.

The search would be conducted by both ground-based telescopes and new spacecraft systems.