Chandra

Harvey's Voyage

Jul
21

Dr. Harvey Tananbaum at the Smithsonian's Castle Library in May 2006. (Credit: Jim Moran)

On April 20, 2014, Harvey Tananbaum stepped down after 23 years as director of the Chandra X-ray Center (CXC). This event was duly noted in various press releases, but its significance may not have been widely appreciated.

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Chandra, me, and the number 23

Jul
21

A month or two after Chandra launched in July 1999, I was asked at a Chandra X-ray Center (CXC) senior staff meeting how long I actually expected Chandra to operate. I spontaneously responded: "23 years". Now that is a number not heard very frequently, so there were lots of quizzical looks indicating that an explanation was in order.

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Galactic Pyrotechnics On Display

Jul
02

M106

A galaxy about 23 million light years away is the site of impressive, ongoing, fireworks. Rather than paper, powder, and fire, this galactic light show involves a giant black hole, shock waves, and vast reservoirs of gas.

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Remembering the Original Chandra

Aug
22

On August 21, 1995, the field of astrophysics lost one of its greats. Seventeen years ago this week, Subrahmanyan Chandrasekhar passed away. Chandra, as he was known to his friends and colleagues, was widely regarded as one of the foremost astrophysicists of the 20th century.

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LUCKY 13

Jul
23

A little bit after midnight (12:31 am EDT to be exact) on July 23, 1999, the Space Shuttle Columbia lifted off from the Kennedy Space Center in Florida. Onboard was what was then the largest payload ever carried by a Shuttle: the Chandra X-ray Observatory.

Space Shuttle Columbia

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