Hubble Space Telescope

Hubble Space Telescope

The Hubble Space Telescope is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.

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Chandra X-ray Observatory

Chandra X-ray Observatory

The Chandra X-ray Observatory (CXO) is a Flagship-class space observatory launched on STS-93 by NASA.

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Kepler Space Telescope

Kepler Space Telescope

Launched in 2009, the Kepler space telescope is our first mission capable of identifying Earth-size planets around other stars.

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James Webb Space Telescope

James Webb Space Telescope

The James Webb Space Telescope is part of NASA's Next Generation Space Telescope program, developed by NASA, the European Space Agency, and the Canadian Space Agency.

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  Flyaround of the Hubble Space Telescope (HST) after deployment on this second servicing mission (HST SM-02). Note the telescope’s open aperture door. – NASA

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