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New and Noteworthy
One-stop shopping for all the latest Chandra materials available.
Recent Images

Cyg X-3's Little Friend

Cyg X-3's Little Friend
A small cloud of dust and gas containing a new star being formed about 20,000 light years from Earth.
Markarian 1018

Markarian 1018
An active galaxy located about 590 million light years from Earth.
NGC 5128

NGC 5128
An elliptical galaxy, also known as Centaurus A, located about 12 million light years away.
Chandra Archive Collection

Chandra Archive Collection
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
Westerlund 2

Westerlund 2
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
3C31

3C31
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
PSR J1509-5850

PSR J1509-5850
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
Abell 665

Abell 665
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
RX J0603.3+4214

RX J0603.3+4214
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
CTB37A

CTB37A
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
XJ1417+52

XJ1417+52
A black hole found in the outer regions of a galaxy about 4.5 billion light years from Earth.
Pluto

Pluto
A dwarf planet in the outer regions of the Solar System.
Item of Interest

Receive The Chandra Digest

The Chandra X-ray Center emails the Chandra Digest approximately every two weeks and includes the latest press release or image from Chandra, the recent Observatory status report, as well as any new science features, additions to the Chandra web site and more.

Chandra Digest

Latest Updates
Calendar 2017
Printable 2017 Chandra Calendar
Print your own 2017 Chandra calendar with spectacular images from the past year.
Science Olympiad
Science Olympiad Astronomy Webinar
Science Olympiad is a national non-profit organization dedicated to improving the quality of K-12 science education, increasing interest in science for all students.
Chandra Google+
Chandra on Google+
Visit us on Google+ and contribute to our ongoing conversation about the work we do.
Space Scoop
Chandra for Kids
In cooperation with Space Scoop: Bringing news from across the Universe to children all around the world. Universe Awareness and the Chandra X-ray Observatory.
Chemistry
Chemistry and the Universe
The familiar periodic table of elements has been adapted to show how astronomers see the chemical Universe.
Supernova Remnants
Investigating Supernova Remnants
An activity that uses Chandra data to investigate several supernova remnants to determine if the supernova was a Type II core collapse or a Type Ia thermonuclear event.
Sight Lines
Sight Lines
This online exhibition explores the research processes used by art conservators and astrophysicists, featuring X-ray images of the cosmos from NASA's orbiting Chandra X-ray Observatory and X-ray images of modern paintings from the Harvard Art Museum.
The Galactic Center
The Galactic Center
A panoramic X-ray view, covering a 900 by 400 light year swath, shows that the center of the Galaxy is a teeming and tumultuous place.
Space Math @ NASA
Space Math @ NASA
Space Math @ NASA introduces students to the use of mathematics in today's scientific discoveries.
Telescopes & Light
Telescopes & Light
Astronomers have built telescopes and detectors that can see far beyond the type of radiation we can detect with the human eye.
HD
Animations & Video in High Definition
Animations in high definition viewable on your computer or television.
Multiwavelength
Images With Multiwavelength Feature
Explore these interactive images by turning on and off the different kinds of light incorporated into the composite.
First Decade
Chandra's First Decade of Discovery
In 1999, the most powerful X-ray telescope ever made began its exploration of the hot Universe. Explore the highlights of the Universe with Chandra.
Wonders Within
Constellations : Wonders Within
This series of posters represents some of the most dramatic images made by combining data from the best of modern telescopes.
Erth to Heavens
From the Earth to the Heavens
A side by side comparison of images of Earth by Yann Arthus-Bertrand and images taken by Chandra.
3D Wall
View Chandra Images in 3D Wall
Scroll through the entire library of released Chandra images in a quick-downloading 3d wall format with the Cooliris plug-in for Firefox, Internet Explorer and Safari web browsers.
X-ray 101
X-ray Images 101
Chandra 101 provides information about topics pertaining to the Chandra X-Ray Observatory. Many sections contain links to more detailed information.
Invisible Sky
Touch the Invisible Sky
Multi-wavelength astronomy - the study of the universe at wavelengths beyond the visible, has revolutionized our understanding and appreciation of the cosmos.
Print Gallery
Bringing Chandra to you
These high resolution Chandra images may be printed on your home printer, from an online photo web site, or at an in-store photo station.
Chandra Highlight
A Tour of Cyg X-3's Little Friend
Chandra Podcasts
A Tour of Cyg X-3's Little Friend

Now you can take Chandra anywhere, be it school, work or play. Just download Chandra Podcasts to your portable MP3 player and go.
Chandra Blog
Women in the High Energy Universe: Karla GuardadoKarla Guardado Karla Guardado is an astrophysicist technical assistant at the Smithsonian Astrophysical Observatory. She studied physics at MIT and wrote her...
[More (22 Nov 16)]
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Ask Astrophysicist
Ask an Astrophysicist
Ask the questions that you have about Chandra and Chandra's Missions.
New Guestbook
Chandra Guestbook
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New Site Map
Chandra Site Map
A detailed site map helps you explore chandra.harvard.edu, includes Top 5 Questions.

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