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Forum: Astronomy

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  1. Sticky Thread Sticky: The ULTIMATE Astronomy Quiz 2

    Started by antoniseb, 2017-Aug-01 11:41 AM
    2 Pages
    1 2
    • Replies: 53
    • Views: 17,217
    2018-Apr-14, 04:06 PM Go to last post
  2. Sticky Thread Sticky: The ULTIMATE astronomy quiz

    Started by Glom, 2005-Jun-19 12:19 AM
    176 Pages
    1 2 3 ... 176
    • Replies: 5,250
    • Views: 379,436
    2017-Jul-28, 07:46 PM Go to last post
  1. How long do sunspots last?

    Started by ObiWan377, 2003-Oct-29 10:36 PM
    • Replies: 1
    • Views: 6,974
    2003-Oct-29, 10:42 PM Go to last post
  2. Another big flare

    Started by Reverend J, 2003-Oct-29 09:07 PM
    • Replies: 4
    • Views: 971
    2003-Oct-29, 10:34 PM Go to last post
  3. Earth's Core

    Started by hrherle, 2003-Oct-29 06:05 AM
    • Replies: 3
    • Views: 2,007
    2003-Oct-29, 06:48 PM Go to last post
  4. What effects would a supernova have on the Sun?

    Started by Zero Signal, 2003-Oct-28 10:14 PM
    • Replies: 7
    • Views: 1,833
    2003-Oct-29, 03:17 PM Go to last post
    • Replies: 1
    • Views: 704
    2003-Oct-29, 02:31 PM Go to last post
  5. Kp index hit 9

    Started by John Kierein, 2003-Oct-29 11:32 AM
    • Replies: 4
    • Views: 2,808
    2003-Oct-29, 02:18 PM Go to last post
  6. X class-Solar Flares

    Started by peter channon, 2003-Oct-27 06:26 PM
    • Replies: 24
    • Views: 2,670
    2003-Oct-29, 12:03 PM Go to last post
  7. MIT's Free OpenCourseWare

    Started by sarongsong, 2003-Oct-27 08:32 PM
    • Replies: 2
    • Views: 807
    2003-Oct-29, 11:49 AM Go to last post
  8. Aurorae info?

    Started by Postmortem, 2003-Oct-29 01:15 AM
    • Replies: 1
    • Views: 692
    2003-Oct-29, 01:31 AM Go to last post
    • Replies: 21
    • Views: 2,088
    2003-Oct-28, 09:09 PM Go to last post
  9. Big Solar Event... Aurorae?

    Started by The Bad Astronomer, 2003-Oct-28 07:18 PM
    • Replies: 2
    • Views: 1,016
    2003-Oct-28, 08:57 PM Go to last post
  10. There are more stars than...

    Started by RBG, 2003-Oct-27 08:25 PM
    • Replies: 10
    • Views: 1,536
    2003-Oct-28, 08:45 PM Go to last post
  11. You are here: a map of the universe

    Started by ToSeek, 2003-Oct-28 05:06 PM
    • Replies: 2
    • Views: 1,984
    2003-Oct-28, 07:18 PM Go to last post
  12. Eye damage from observing meteors?

    Started by Marjorie, 2003-Oct-22 06:08 PM
    2 Pages
    1 2
    • Replies: 37
    • Views: 3,142
    2003-Oct-28, 06:07 PM Go to last post
  13. What does it mean?

    Started by cyswxman, 2003-Oct-27 07:49 PM
    • Replies: 7
    • Views: 1,056
    2003-Oct-28, 02:43 PM Go to last post
  14. Earth's magnetic field

    Started by tusenfem, 2003-Oct-28 11:24 AM
    • Replies: 1
    • Views: 815
    2003-Oct-28, 11:31 AM Go to last post
  15. If the screwed-up ones look this good...

    Started by Charlie in Dayton, 2003-Oct-27 06:47 AM
    • Replies: 8
    • Views: 1,080
    2003-Oct-28, 06:49 AM Go to last post
  16. Poll Poll: Nuke an Asteroid

    Started by Superluminal, 2003-Aug-06 02:35 AM
    2 Pages
    1 2
    • Replies: 35
    • Views: 3,312
    2003-Oct-28, 01:20 AM Go to last post
  17. A lot can happen in a day...

    Started by ObiWan377, 2003-Oct-24 07:51 PM
    • Replies: 17
    • Views: 1,968
    2003-Oct-27, 08:37 PM Go to last post
  18. California wildfires from space

    Started by John Kierein, 2003-Oct-27 05:29 PM
    • Replies: 1
    • Views: 734
    2003-Oct-27, 07:39 PM Go to last post

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