The advantage is that it's cheaper and less difficult.
Usually it's better resolution.
telescopes
lenses
Yes, telescopes in space, like the Hubble Space Telescope, produce the clearest images because images from ground-based telescopes get distorted when the light passes through the atmosphere.
Earth based telescopes have to see through the atmosphere and all the dust it contains. space telescopes like Hubble have nothing but clearspace to see through.
combining two images into a single whole
Large telescopes have improved resolution over small telescopes and as such can gather clearer images of objects further away.
No.
telescopes
mirrors and/or lenses
lenses
Yes, telescopes in space, like the Hubble Space Telescope, produce the clearest images because images from ground-based telescopes get distorted when the light passes through the atmosphere.
refracting telescopes
Earth based telescopes have to see through the atmosphere and all the dust it contains. space telescopes like Hubble have nothing but clearspace to see through.
combining two images into a single whole
lens possibly
Interferometry is The act of linking several telescopes together so they act as one telescope. It improves as the distances in the telescopes increase.
Interferometry is The act of linking several telescopes together so they act as one telescope. It improves as the distances in the telescopes increase.