When astronomers find a distant planet, they may not know much at first. They may only be able to detect a blurry object that appears to be worth investigating. Utilizing devices like the Hubble Telescope, though, scientists are able to learn quite a lot. Check it out:
To learn more, check out Telescope, a new documentary exploring the Webb Telescope -- the larger, more advanced successor to Hubble. Telescope premieres February 20 at 9/8 central on Discovery.