Page 1 of 620 1231151101501 ... LastLast
Threads 1 to 20 of 12399

Forum: Astronomy

It's a big Universe. Talk about it here.

  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: 20,971
    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: 390,887
    2017-Jul-28, 07:46 PM Go to last post
  1. Cool Perseid Meteor Shower Peaks 2020 AUG 11-12

    Started by Centaur, Yesterday 11:41 PM
    • Replies: 0
    • Views: 23
    Yesterday, 11:41 PM Go to last post
    • Replies: 6
    • Views: 172
    Yesterday, 05:49 PM Go to last post
  2. Betelgeuse Fainting

    Started by Superluminal, 2019-Dec-23 05:28 AM
    6 Pages
    1 2 3 ... 6
    • Replies: 169
    • Views: 13,549
    2020-Jul-29, 12:56 AM Go to last post
  3. The Hyades is in its Death Throes

    Started by SagittariusAStar, 2020-Jul-24 01:59 PM
    • Replies: 3
    • Views: 143
    2020-Jul-27, 06:26 AM Go to last post
  4. Comet F3 NEO Wise

    Started by Superluminal, 2020-Jun-24 09:39 PM
    • Replies: 24
    • Views: 695
    2020-Jul-21, 05:07 PM Go to last post
  5. Comet ATLAS thread: will it be visible to us, a Great Comet?

    Started by Roger E. Moore, 2020-Mar-20 12:44 PM
    2 Pages
    1 2
    • Replies: 36
    • Views: 2,676
    2020-Jul-21, 04:08 AM Go to last post
  6. Cool July New Moon Spotting

    Started by Centaur, 2020-Jul-19 05:49 PM
    • Replies: 0
    • Views: 34
    2020-Jul-19, 05:49 PM Go to last post
    • Replies: 8
    • Views: 349
    2020-Jul-19, 04:15 AM Go to last post
  7. ORC's

    Started by Superluminal, 2020-Jul-18 03:55 AM
    • Replies: 4
    • Views: 143
    2020-Jul-19, 01:51 AM Go to last post
  8. Popular Astronomy/Astrophysics Books

    Started by cjackson, 2014-Jun-16 06:47 AM
    3 Pages
    1 2 3
    • Replies: 68
    • Views: 16,076
    2020-Jul-18, 10:17 PM Go to last post
    • Replies: 0
    • Views: 54
    2020-Jul-18, 08:53 PM Go to last post
    • Replies: 0
    • Views: 61
    2020-Jul-15, 04:26 AM Go to last post
  9. Is Planet Nine almost certain, probable, possible or unlikely?

    Started by Tom Mazanec, 2016-Jun-13 04:01 PM
    6 Pages
    1 2 3 ... 6
    1 Deleted Post(s)
    • Replies: 164
    • Views: 34,378
    2020-Jul-13, 06:21 PM Go to last post
  10. Cool Mercury as a Summer Morning Star

    Started by Centaur, 2020-Jul-11 06:38 PM
    • Replies: 0
    • Views: 50
    2020-Jul-11, 06:38 PM Go to last post
  11. Cool Jupiter & Saturn - July Oppositions from the Sun

    Started by Centaur, 2020-Jun-30 05:05 PM
    • Replies: 8
    • Views: 249
    2020-Jul-07, 03:45 PM Go to last post
  12. How often do we get close passages?

    Started by Tom Mazanec, 2018-Apr-12 02:43 PM
    2 Pages
    1 2
    1 Deleted Post(s)
    • Replies: 55
    • Views: 9,596
    2020-Jul-06, 05:50 PM Go to last post
  13. Cool Asteroid 2 Pallas Opposes Sun - 2020 JUL 15

    Started by Centaur, 2020-Jul-05 05:31 PM
    • Replies: 0
    • Views: 60
    2020-Jul-05, 05:31 PM Go to last post
  14. Cool Penumbral Lunar Eclipse - 2020 JUL 04-05

    Started by Centaur, 2020-Jul-03 05:12 PM
    • Replies: 0
    • Views: 84
    2020-Jul-03, 05:12 PM Go to last post
  15. Question Mysteries in Astronomy (my short list)

    Started by Roger E. Moore, 2018-Nov-15 02:56 AM
    5 Pages
    1 2 3 ... 5
    enigmas, mysteries, strange events, the unknown
    • Replies: 132
    • Views: 13,395
    2020-Jul-01, 11:05 PM Go to last post
  16. Question Monster black hole in early universe

    Started by dtilque, 2020-Jun-27 08:48 AM
    • Replies: 1
    • Views: 135
    2020-Jun-27, 10:54 AM Go to last post

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 150 views
Hot thread with unread posts
More than 15 replies or 150 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •