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The telescope design is a candidate for use in new effort to study high-energy gamma-rays that will involve more than 100 telescopes.

The Chandra X-ray telescope and other observatories are being used to study stars that could potentially harbor habitable planets. Future observatories will use the data to narrow down the list ...

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The best telescopes for seeing planets will let you capture Saturn and Neptune in the same view. Watch out for Prime Day, which is your chance to save big on planet spotting equipment.

Refracting telescopes dominated the nineteenth century, with the size of apertures rising to reach the physical limits for lens manufacture at a diameter of around one metre.

With options to suit beginners and seasoned astronomers, we've rounded up the 10 best telescope deals that are worth buying this Prime Day.

The Chandra X-Ray Observatory—an orbiting telescope launched in 1999 aboard Space Shuttle Columbia —is facing a major financial threat in NASA’s latest budget proposal.