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Jan 2

Chandra Announcement: Chandra Events at the 247th AAS

Chandra Events at the 247th AAS The Chandra Director's Office would like to bring to your

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Chandra Announcement: Chandra Events at the 247th AAS

Chandra Events at the 247th AAS The Chandra Director's Office would like to bring to your

Jan 2

12/18/25

Chandra Announcement: Chandra Cycle 28 Call for Proposals Released 18 December 2025

Chandra Cycle 28 Call for Proposals Released 18 December 2025 The CXC is pleased to announce the

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Chandra Announcement: Chandra Cycle 28 Call for Proposals Released 18 December 2025

Chandra Cycle 28 Call for Proposals Released 18 December 2025 The CXC is pleased to announce the

12/18/25

12/16/25

Chandra Announcement: CIAO 4.18, Sherpa 4.18, CALDB 4.12.3, SAOImageDS9 8.7b2, and MARX 6.0.1 Released

CIAO 4.18, Sherpa 4.18, CALDB 4.12.3, SAOImageDS9 8.7b2, and MARX 6.0.1 Released The Chandra X-ray

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Chandra Announcement: CIAO 4.18, Sherpa 4.18, CALDB 4.12.3, SAOImageDS9 8.7b2, and MARX 6.0.1 Released

CIAO 4.18, Sherpa 4.18, CALDB 4.12.3, SAOImageDS9 8.7b2, and MARX 6.0.1 Released The Chandra X-ray

12/16/25

11/20/25

Chandra Announcement: SAOTrace 2.0.6 is now available

An update for SAOTrace (version 2.0.6) is now available. SAOTrace provides a high fidelity raytrace

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Chandra Announcement: SAOTrace 2.0.6 is now available

An update for SAOTrace (version 2.0.6) is now available. SAOTrace provides a high fidelity raytrace

11/20/25

11/6/25

Chandra Announcement: Reminder: Share Your Concerns with the Chandra Users’ Committee

Dear Chandra Users, If you have any comments, concerns, or issues you would like to bring to the

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Chandra Announcement: Reminder: Share Your Concerns with the Chandra Users’ Committee

Dear Chandra Users, If you have any comments, concerns, or issues you would like to bring to the

11/6/25

10/7/25

Chandra Announcement: Release of the Sherpa 4.18.0 package for Python

Release of the Sherpa 4.18.0 package for Python The Sherpa 4.18.0 modeling and fitting package for

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Chandra Announcement: Release of the Sherpa 4.18.0 package for Python

Release of the Sherpa 4.18.0 package for Python The Sherpa 4.18.0 modeling and fitting package for

10/7/25

9/29/25

Chandra Summer 2025 Newsletter

Chandra Newsletter Issue 36 — Summer 2025 In this issue: Highlights of Chandra X-ray Center

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Chandra Summer 2025 Newsletter

Chandra Newsletter Issue 36 — Summer 2025 In this issue: Highlights of Chandra X-ray Center

9/29/25

9/25/25

Chandra Announcement: Website and Related Services Outage on September 26-27

Due to a planned power outage for required electrical work, the following services may be unavailable

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Chandra Announcement: Website and Related Services Outage on September 26-27

Due to a planned power outage for required electrical work, the following services may be unavailable

9/25/25

9/10/25

Chandra Announcement: Website and Related Services Outage on September 11

Due to a planned power outage for required electrical work, the following services may be unavailable

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Chandra Announcement: Website and Related Services Outage on September 11

Due to a planned power outage for required electrical work, the following services may be unavailable

9/10/25

9/2/25

Chandra Announcement: Applications for the 2026 NASA Hubble Fellowship Program are now being accepted

Applications for the 2026 NASA Hubble Fellowship Program are now being accepted On behalf of the NASA

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Chandra Announcement: Applications for the 2026 NASA Hubble Fellowship Program are now being accepted

Applications for the 2026 NASA Hubble Fellowship Program are now being accepted On behalf of the NASA

9/2/25

8/19/25

Chandra Announcement: CXC Announces the Release of Chandra CalDB version 4.12.2

CXC Announces the Release of Chandra CalDB version 4.12.2 This upgrade includes the following items:

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Chandra Announcement: CXC Announces the Release of Chandra CalDB version 4.12.2

CXC Announces the Release of Chandra CalDB version 4.12.2 This upgrade includes the following items:

8/19/25

8/19/25

Chandra Announcement: Discovery Awaits! Chandra Science Targets for Cycle 27

The Chandra X-ray Center would like to share a collection of highlights from the Cycle 27 GO program:

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Chandra Announcement: Discovery Awaits! Chandra Science Targets for Cycle 27

The Chandra X-ray Center would like to share a collection of highlights from the Cycle 27 GO program:

8/19/25

7/29/25

Chandra Announcement: Chandra Cycle 27 Target List Released

Chandra Cycle 27 Target List Released The list of targets recommended by the Cycle 27 Peer Review is

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Chandra Announcement: Chandra Cycle 27 Target List Released

Chandra Cycle 27 Target List Released The list of targets recommended by the Cycle 27 Peer Review is

7/29/25

5/21/25

Chandra Announcement: CUC Statement on Proposed Cuts to NASA Astrophysics

CUC Statement on Proposed Cuts to NASA Astrophysics A new statement by the Chandra Users'

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Chandra Announcement: CUC Statement on Proposed Cuts to NASA Astrophysics

CUC Statement on Proposed Cuts to NASA Astrophysics A new statement by the Chandra Users'

5/21/25

5/13/25

Chandra Announcement: Release of the Sherpa 4.17. 1 package for Python

Release of the Sherpa 4.17.1 Package for Python The Sherpa 4.17.1 modeling and fitting package for

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Chandra Announcement: Release of the Sherpa 4.17. 1 package for Python

Release of the Sherpa 4.17.1 Package for Python The Sherpa 4.17.1 modeling and fitting package for

5/13/25

4/18/25

Chandra Announcement: Chandra and XMM Legacy Session at AXIS Community Science Conference

The Chandra X-ray Center would like to call attention to the upcoming AXIS Community Science

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Chandra Announcement: Chandra and XMM Legacy Session at AXIS Community Science Conference

The Chandra X-ray Center would like to call attention to the upcoming AXIS Community Science

4/18/25

3/31/25

Chandra Announcement: NASA Awards Prize Postdoctoral Fellowships for 2025

NASA Awards Prize Postdoctoral Fellowships for 2025 The highly competitive NASA Hubble Fellowship

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Chandra Announcement: NASA Awards Prize Postdoctoral Fellowships for 2025

NASA Awards Prize Postdoctoral Fellowships for 2025 The highly competitive NASA Hubble Fellowship

3/31/25

3/27/25

Chandra Announcement: Chandra/CIAO Workshop at UMass Lowell

Chandra/CIAO Workshop at UMass Lowell 19-23 May 2025 Check the workshop website and click here to

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Chandra Announcement: Chandra/CIAO Workshop at UMass Lowell

Chandra/CIAO Workshop at UMass Lowell 19-23 May 2025 Check the workshop website and click here to

3/27/25

3/18/25

Chandra Announcement: Cycle 27 Proposal Deadline in One Day

The CXC reminds potential proposers that the deadline for the Chandra Cycle 27 Call for Proposals (

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Chandra Announcement: Cycle 27 Proposal Deadline in One Day

The CXC reminds potential proposers that the deadline for the Chandra Cycle 27 Call for Proposals (

3/18/25

3/12/25

Chandra Announcement: Cycle 27 Proposal Deadline in One Week

The CXC reminds potential proposers that the deadline for the Chandra Cycle 27 Call for Proposals (

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Chandra Announcement: Cycle 27 Proposal Deadline in One Week

The CXC reminds potential proposers that the deadline for the Chandra Cycle 27 Call for Proposals (

3/12/25

2/21/25

Chandra Announcement: Town Hall Meeting on Chandra's Distributed Peer Review for Cycle 27

Town Hall Meeting on Chandra's Distributed Peer Review for Cycle 27 The Chandra X-ray Center

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Chandra Announcement: Town Hall Meeting on Chandra's Distributed Peer Review for Cycle 27

Town Hall Meeting on Chandra's Distributed Peer Review for Cycle 27 The Chandra X-ray Center

2/21/25

1/31/25

Chandra Announcement: CXC Announces the Release of Chandra CalDB version 4.12.0

CXC Announces the Release of Chandra CalDB version 4.12.0 This upgrade includes the following items:

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Chandra Announcement: CXC Announces the Release of Chandra CalDB version 4.12.0

CXC Announces the Release of Chandra CalDB version 4.12.0 This upgrade includes the following items:

1/31/25

1/29/25

Chandra Announcement: Chandra Data Collection DOIs

Chandra Data Collection DOIs We would like to remind all members of the Chandra community that all

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Chandra Announcement: Chandra Data Collection DOIs

Chandra Data Collection DOIs We would like to remind all members of the Chandra community that all

1/29/25

1/10/25

Chandra Announcement: Chandra Events at the 245th AAS

Chandra Events at the 245th AAS The Chandra Director's Office would like to bring to your

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Chandra Announcement: Chandra Events at the 245th AAS

Chandra Events at the 245th AAS The Chandra Director's Office would like to bring to your

1/10/25

1/8/25

Chandra Announcement: Chandra Users’ Committee Releases Report

CHANDRA USERS' COMMITTEE RELEASES REPORT The Chandra Users' Committee (CUC) held its Fall

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Chandra Announcement: Chandra Users’ Committee Releases Report

CHANDRA USERS' COMMITTEE RELEASES REPORT The Chandra Users' Committee (CUC) held its Fall

1/8/25

12/19/24

Chandra Announcement: Chandra Cycle 27 Call for Proposals Released 19 December 2024

Chandra Cycle 27 Call for Proposals Released 19 December 2024 The CXC is pleased to announce the

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Chandra Announcement: Chandra Cycle 27 Call for Proposals Released 19 December 2024

Chandra Cycle 27 Call for Proposals Released 19 December 2024 The CXC is pleased to announce the

12/19/24

12/17/24

Chandra Announcement: CIAO 4.17, Sherpa 4.17, CALDB 4.11.6, SAOImageDS9 8.6, MARX 5.5.3 released

Chandra Announcement: CIAO 4.17, Sherpa 4.17, CALDB 4.11.6, SAOImageDS9 8.6, MARX 5.5.3 released The

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Chandra Announcement: CIAO 4.17, Sherpa 4.17, CALDB 4.11.6, SAOImageDS9 8.6, MARX 5.5.3 released

Chandra Announcement: CIAO 4.17, Sherpa 4.17, CALDB 4.11.6, SAOImageDS9 8.6, MARX 5.5.3 released The

12/17/24

11/20/24

Chandra Announcement: Chandra's Science Plans for 2025

DISCOVERY AWAITS CHANDRA'S SCIENCE PLANS FOR 2025 We are excited to present an overview of

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Chandra Announcement: Chandra's Science Plans for 2025

DISCOVERY AWAITS CHANDRA'S SCIENCE PLANS FOR 2025 We are excited to present an overview of

11/20/24

11/8/24

Chandra Announcement: Town Hall Meeting

Chandra Town Hall November 14, 2024 - 12:00PM (EST) Dear Colleagues: As many of you know, Chandra has

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Chandra Announcement: Town Hall Meeting

Chandra Town Hall November 14, 2024 - 12:00PM (EST) Dear Colleagues: As many of you know, Chandra has

11/8/24

10/29/24

Chandra Announcement: Extended Registration Period for 25 Years of Chandra Science Symposium

25 Years of Chandra Science Symposium December 3—6, 2024 Boston, MA, USA cxc.harvard.edu/cdo/

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Chandra Announcement: Extended Registration Period for 25 Years of Chandra Science Symposium

25 Years of Chandra Science Symposium December 3—6, 2024 Boston, MA, USA cxc.harvard.edu/cdo/

10/29/24

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