Chandra X-ray Center

The Chandra X-ray Observatory continues to operate as usual during the COVID-19 pandemic.

Request for Community Input for Chandra Senior Review

We welcome community suggestions about how Chandra can best address emerging and legacy science areas in the upcoming years.

Read the full announcement.

10/29/21

Release of the Sherpa 4.14.0 package for Python.

This release of Sherpa includes various enhancements, documentation updates, bug fixes and infrastructure changes.

Read the full announcement.

10/7/21

Roasted and Shredded by a Stellar Sidekick

Chandra Sees Evidence for Possible Planet in Another Galaxy

When a Stable Star Explodes

Jingle, Pluck, and Hum: Sounds from Space

"X-ray Magnifying Glass" Enhances View of Distant Black Holes

Huge Rings Around a Black Hole

Chandra Catches Slingshot During Collision

Galaxy Cluster Travels Down an Intergalactic Highway

Cosmic Hand Hitting a Wall

The Give and Take of Mega-Flares From Stars

Proposer

Main Proposer Page

Chandra Proposal Software (CPS)

Observations and Schedules

Long Term Schedule

Short Term Schedule

Observation Scheduling and Support

Cycle Targets and Statistics

Special Calls for Proposals

Archive and Data Processing

ChaSeR: query Chandra observations

Chandra Data Archive

Footprint Service

Reprocessing Information

Chandra Source Catalog

TGCAT: Grating Data Catalog and Archive