从spacetelescope.org链接出的网站列表
| No. | 链出域名 | 关键词 |
|---|---|---|
| 1. | feedburner.com | |
| 2. | facebook.com | |
| 3. | youtube.com | |
| 4. | twitter.com | |
| 5. | apple.com | |
| 6. | dailymotion.com | |
| 7. | vimeo.com | |
| 8. | flickr.com | |
| 9. | parsecawards.com | |
| 10. | cosmiccollisions.org | |
| 11. | portaltotheuniverse.org | |
| 12. | addthis.com | |
| 13. | eso.org | |
| 14. | astronomy2009.org | |
| 15. | stecf.org | |
| 16. | esa.int | |