This anniversary, we celebrate the team behind the mission. Thanks, Chandra team, for all you do!

(Shown here is a group shot of some of the team, past and present, at the party at our Control Center yesterday).
#Chandra25 #Astrodon #ChandraScience

Good morning, it is July 23 here in Cambridge, MA, meaning that today is our 25th BIRTHDAY!

What better way to start this party than a release of 25 images to celebrate 25 years: https://www.nasa.gov/missions/chandra/25-images-to-celebrate-nasas-chandra-25th-anniversary/

#Astrodon #Astronomy #Astrophysics #NASA #Science #Space #XRayAstronomy #ChandraScience #XRaysAreTheBestRays #25Years

25 Images to Celebrate NASA's Chandra 25th Anniversary - NASA

To celebrate the 25th anniversary of its launch, NASA’s Chandra X-ray Observatory is releasing 25 never-before-seen views of a wide range of cosmic

NASA
We're here at the Main Event of #HEAD21 -- The #Chandra25 Session. We have three talks---by Daryl Haggard, Tea Temim, and Stephanie LaMassa---on Sgr A*, Supernovae, and AGN, respectively. #ChandraScience
It's a full house at #HEAD21 to learn about the Chandra Source Catalog! CSC 2.1 just released last week, and you can access it at https://cxc.cfa.harvard.edu/csc/. #Astrodon #ChandraScience #XraysAreTheBestRays
Chandra Source Catalog - CSC

The Chandra X-ray Observatory Source Catalog

Are you at #HEAD21? Come swing by our booth! Get a brand-new #Chandra25 sticker, find out about the upcoming symposium (https://cxc.cfa.harvard.edu/cdo/symposium_2024/), ask your questions about the observatory, and find out about the great new work being done by our archives and source catalog teams!

#XRaysAreTheBestRays #ChandraScience #Astrodon

25 Years of Chandra Science

SAO High Energy Astrophysics Division

It's currently 6 PM EDT on Mar 14. There are now 24 hours remaining in the #ChandraCycle25 Call for Proposals. 🛰️
#ChandraScience #Astrodon

Don't forget -- the #Chandra Cycle 25 Call for Proposals closes on March 15 at 6 PM EDT.

All the information you can need is given on our page for proposers: https://cxc.harvard.edu/proposer/, including a section on What's New and FAQs.

Still need help? We're answering your HelpDesk tickets with enhanced staffing. Submit your questions now: https://cxc.harvard.edu/helpdesk/

And remember -- your references now get their own page! #ChandraScience #Astrodon #XRayAstronomy #Astrophysics #Astronomy #NASA

Chandra Proposal Information

SAO High Energy Astrophysics Division

Did you catch our recent #ChandraScience image of Abell 2256, a spectacular merger of at least three galaxy clusters? The hot gas components of these clusters is traced with X-rays -- shown here in blue, using data from us (#Chandra) and our ESA-led friends at #XMM-Newton. This cosmic collision is also a source of radio emission, shown in red from #LOFAR, #GMRT, and the #VLA, produced via particle acceleration. For more details, see
https://chandra.si.edu/photo/2023/a2256/
#Astronomy #Astrodon #Astrophysics
Chandra :: Photo Album :: Abell 2256 :: January 30, 2023

For further information, please see the original announcement concerning the anomaly: https://groups.google.com/a/cfa.harvard.edu/g/chandra-announce/c/xU-JkgAD0Vg/m/dqYqcfKwBgAJ; the follow-up from two weeks later: https://groups.google.com/a/cfa.harvard.edu/g/chandra-announce/c/uGepynsSipk/m/cC8GOdNDBwAJ; and the most recent previous update from this September: https://groups.google.com/a/cfa.harvard.edu/g/chandra-announce/c/7O064uJmQ4Y/m/UZiaCU1BAgAJ.

Summarizing these previous announcements: Last February, the HRC instrument was found to be in an anomalous state and was shut down. The issue was traced to the +/- 15 V power supply. #Chandra #ChandraXRay #ChandraScience

Chandra Announcement: HRC Anomaly

An update on the HRC Return to Science. A text version is available here: https://groups.google.com/a/cfa.harvard.edu/g/chandra-announce/c/XfWZdG8juMM/m/LLC1gdvGAQAJ

In short: following the anomaly of last year, science and engineering teams have devised a mode of operations that has been successful for four observations. This involves limiting durations of observing segments to 15 ks. We intend to begin scheduling HRC observations under these constraints the week of 06 March. #Chandra #ChandraXRay #ChandraScience #Astrophysics #Astrodon #Astronomy #NASA

Chandra Announcement: Update on HRC Return to Science