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Celebrating 25 years of
NASA's Chandra X-ray Observatory
Celebrating 25 years of
NASA's Chandra X-ray Observatory

A quarter of a century ago, scientists began a quest to answer some of the biggest questions in the Universe. They have discovered many truths – and uncovered even more mysteries. Since it was launched into space in July 1999, NASA’s Chandra X-ray Observatory has changed our view of the Universe. With this telescope, we continue to see what is otherwise invisible. We are still learning, exploring, and expanding humanity’s grasp of what the Universe has to offer. Our X-ray legacy continues.

Chandra X-ray Observatory
A quarter of a century ago, scientists began a quest to answer some of the biggest questions in the Universe. They have discovered many truths – and uncovered even more mysteries. Since it was launched into space in July 1999, NASA’s Chandra X-ray Observatory has changed our view of the Universe. With this telescope, we continue to see what is otherwise invisible. We are still learning, exploring, and expanding humanity’s grasp of what the Universe has to offer. Our X-ray legacy continues.



MISSION ELAPSE TIME

25: 342: 17: 52: 58
YEARS  DAYS  HOURS  MINUTES  SECONDS


Chandra detects X-ray emissions from very hot regions of the universe such as exploded stars, clusters of galaxies, and matter around black holes.
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25 Images for Chandra's 25th


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Come celebrate with Chandra!
Event

Throughout the year, we will be celebrating Chandra's 25th anniversary with special events.
Check back here for specifics.

Featured Images
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Tarantula Nebula (30 Doradus)

The Enduring Stellar Lifecycle in 30 Doradus
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IC443

Three new translations of telescope data into sound.
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30 Doradus B:

NASA Telescopes Start the Year With a Double Bang
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Cassiopeia A:

NASA Telescopes Chase Down "Green Monster" in Star's Debris
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SS 433:

NASA's IXPE Helps Researchers Maximize 'Microquasar' Findings
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SNR 1181:

Stunning Echo of 800-year-old Explosion