Betelgeuse is so big and so relatively near Earth that large telescopes can actually detect features of its surface.

Only very large telescopes can detect the asteroid.

Another telescope detected what may be liquid or frozen seas of hydrocarbons on Titan.

It is unclear whether telescopes on the ground or imagery from satellites might have detected such a breach.

The telescope has detected 105 confirmed planets and thousands of likely planet candidates as of January 9, 2012.

This is why people use large telescopes to detect the light from distant stars.

Its telescopes have already detected a new moon orbiting the pale green planet.

Although today's telescopes cannot detect an alien planet directly, future telescopes might.

When the work is completed in the next month or so, the telescope should detect four times as many comets and asteroids.

Neither radar nor telescope, however, detected any sign of a recent landing.