| 1. |
navy.mil |
|
| 2. |
n3kl.org |
|
| 3. |
nasa.gov |
|
| 4. |
timeanddate.com |
Wereldklok |
| 5. |
nu.nl |
|
| 6. |
vwkweb.nl |
|
| 7. |
knmi.nl |
|
| 8. |
wisc.edu |
|
| 9. |
temis.nl |
|
| 10. |
si.edu |
|
| 11. |
usgs.gov |
Aardbevingen |
| 12. |
noaa.gov |
Ruimteweer |
| 13. |
spaceweather.com |
|
| 14. |
spaceflightnow.com |
|
| 15. |
esa.int |
ESA |
| 16. |
universetoday.com |
|
| 17. |
space.com |
SPACE.com |
| 18. |
spacedaily.com |
SpaceDaily |
| 19. |
spaceref.com |
SpaceRef |
| 20. |
sky-map.org |
News@Sky |
| 21. |
skyandtelescope.com |
|
| 22. |
heavens-above.com |
Planeten |
| 23. |
allesoversterrenkunde.nl |
|
| 24. |
astroforum.nl |
Astroforum |
| 25. |
hemelwacht.nl |
Hemelwacht |
| 26. |
astronieuws.nl |
|
| 27. |
grotegriepmeting.nl |
|
| 28. |
degrotelongontstekingmeting.nl |
|
| 29. |
xs4all.nl |
|
| 30. |
lunararchitecture.com |
|
|