Images
X-ray Images
Chandra Mission
X-ray Astronomy
Chandra People
Podcasts
Chandra in HD
Standard Definition
The Invisible Sky
Two Inch Universe
By Date/Category
Other Features
Animations & Video
Special Features
Audio
Inspirations
3D Files and Resources
Resources
Q & A
Glossary
Acronym Guide
Further Reading
Desktop Images
iPhone Wallpapers
By Date/Category
Miscellaneous
Handouts
Image Handouts
Chandra Lithographs
Chandra Infographics
Educational Activities
Printable Games
Chandra Fact Sheets
Presentations
Entire Collection
By Date
By Category
Presentations
Web Shortcuts
Chandra Blog
RSS Feed
Chandra Mobile
Chronicle
Email Newsletter
News & Noteworthy
Image Use Policy
Questions & Answers
Glossary of Terms
Download Guide
Get Adobe Reader
Image Use
Image Use Policy & Request Form
Guidelines for utilizing images, applets, movies, and animations featured in this Web Site.
Getting Hard Copies of Images
Ways to obtain photos, slides, etc of Chandra images.
Print Instructions
Downloading Tips
Chandra Animated Gifs & Other Shareables

Click for large jpg
With Text
Click for large jpg
Without Text
1. Black Holes
Black Holes (def.): A dense, compact object whose gravitational pull is so strong that - within a certain distance of it - nothing can escape, not even light.
(Credit: NASA/CXC/A.Jubett)

Click for large jpg
With Text
Click for large jpg
Without Text
2. Supernovas
Supernova (def.): Explosive death of a star, caused by the sudden onset of nuclear burning in a white dwarf star, or gravitational collapse of the core of massive star followed by a shock wave that disrupts the star.
(Credit: NASA/CXC/A.Jubett)

Click for large jpg

3. Cas A: Supernova Remnant in 3D
This visualization of Cassiopeia A shows that there are two main components to this supernova remnant: a spherical component in the outer parts of the remnant and a flattened (disk-like) component in the inner region.
(Credit: NASA/CXC/A.Jubett)

Click for large jpg

4. SN 2006gy: An Exploding Star
The extremely massive star shed some of its outer layers in a large eruption prior to its violent collapse. The explosion then plows into the expelled cooler gas, creating a brilliant light show.
(Credit: NASA/CXC/A.Jubett)

Click for large jpg

5. Black Hole Merger
This gif shows a merger of two galaxies that forms a single galaxy with two centrally located supermassive black holes surrounded by disks of hot gas. The black holes orbit each other for hundreds of millions of years before they merge to form a single supermassive black hole that sends out intense gravitational waves.
(Credit: NASA/CXC/A.Jubett)

Click for large jpg
Click for large jpg
6. Chandra Spacecraft
On July 23, 1999, the Chandra X-ray Observatory was launched into orbit aboard the Space Shuttle Columbia. Chandra is one of NASA's four "Great Observatories," along with the Hubble Space Telescope, the Spitzer Space Telescope, and the Compton Gamma Ray Observatory.
(Credit: NASA/CXC/A.Jubett)

Click for large jpg

7. Astronomy fact #1
There is a supermassive black hole in the center of our very own Milky Way Galaxy. It is called Sagittarius A* and it is 26,000 light years away from Earth.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

8. Astronomy fact #2
If a baseball were made of neutron star material it would weigh about 20 trillion kg, or about 40 times the estimated weight of the entire human population.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

9. Astronomy fact #3
Depending on its size, when a star dies it can explode in a supernova which may temporarily outshine everything else in the galaxy it resides.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

10. Astronomy fact #4
A quasar radiates so much energy that if it was only the size of a flashlight it would produce as much light as all the houses and businesses in the entire Los Angeles basin!
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

11. Astronomy fact #5
Planetary nebulas have nothing to do with planets! They are dying stars that looked like planets when viewed through the small telescope of the past.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

12. Astronomy fact #6
In the future our Sun will become a white dwarf and be one/millionth its current size!
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

13. Astronomy fact #7
Brown dwarfs weren't discovered until 1995 because they were so faint, but it is now estimated that in the Milky Way there are just as many as normal stars.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

14. Astronomy fact #8
More than one thousand Earths can fit inside Jupiter. Impressive until you realize more than one MILLION Earths could fit inside the Sun.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

15. Astronomy fact #9
It is thought that the galaxy cluster Perseus is emanating sound waves in the note of B flat, 57 octaves below middle-C which is a million billion times deeper than the limits of human hearing.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

16. Astronomy fact #10
In billions of years, when our Milky Way galaxy collides with the Andromeda galaxy, it is unlikely that any stars will collide because they are all so far apart from each other.
PDF
(Credit: NASA/CXC/SAO)

Click for large jpg

17. Astronomy fact #11
The electrical power required to operate NASA's premier X-ray telescope, the Chandra X-ray Observatory, is about the same power a hair dryer uses.
PDF
(Credit: NASA/CXC/SAO)