Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. Tiassa
    Locked Sticky

    Action Notes v.1.AEC

    Tiassa, Sep 13, 2011
    Replies:
    5
    Views:
    7,428
    Tiassa
    Apr 22, 2016
  2. Seattle

    How rare is life in our Universe?

    Seattle, Jun 18, 2018 at 8:07 AM ... 2
    Replies:
    36
    Views:
    224
    Michael 345
    Jun 21, 2018 at 2:40 AM
  3. heyuhua

    Chinese Scholar Yang Jian liang Putting Wrongs to Rights in Astrophysics

    heyuhua, Apr 22, 2018 ... 17 18 19
    Replies:
    362
    Views:
    3,718
    heyuhua
    Jun 21, 2018 at 12:32 AM
  4. nebel

    Jupiter's Orbital Velocity & Equatorial Velocity cancel?

    nebel, Jul 31, 2017 ... 5 6 7
    Replies:
    138
    Views:
    3,567
    nebel
    Jun 20, 2018 at 6:51 AM
  5. Andrew256

    Dimension scale loop (for the lack of better term)

    Andrew256, Jun 14, 2018
    Replies:
    4
    Views:
    92
    Michael 345
    Jun 15, 2018 at 10:22 AM
  6. nebel

    Where is most "gravity", inside or out?

    nebel, Feb 29, 2016 ... 8 9 10
    Replies:
    194
    Views:
    6,662
    nebel
    Jun 12, 2018
  7. Q-reeus

    Simple geometric proof GR's GW's are impossible

    Q-reeus, Jul 7, 2016 ... 15 16 17
    Replies:
    335
    Views:
    13,687
    Q-reeus
    Jun 9, 2018
  8. wangchaoqing

    Our Galaxy hosts the annihilation

    wangchaoqing, Jun 8, 2018
    Replies:
    1
    Views:
    81
    NotEinstein
    Jun 8, 2018
  9. Yazata

    Organic Chemicals on Mars

    Yazata, Jun 7, 2018
    Replies:
    1
    Views:
    59
    DaveC426913
    Jun 8, 2018
  10. nebel

    Mercury - Venus - Earth space drag?

    nebel, Sep 29, 2015 ... 2
    Replies:
    38
    Views:
    1,512
    nebel
    Jun 5, 2018
  11. Seattle

    How long do you think humans will be around?

    Seattle, Dec 16, 2017 ... 3 4 5
    Replies:
    80
    Views:
    3,006
    sculptor
    Jun 4, 2018
  12. paddoboy

    To Mars in 70 days: Expert discusses NASA's study of paradoxical EM propulsion drive

    paddoboy, Dec 7, 2016 ... 2
    Replies:
    33
    Views:
    1,385
    Q-reeus
    May 25, 2018
  13. Dinosaur

    Planet 180 degrees from earth in same orbit?

    Dinosaur, May 9, 2009 ... 2 3
    Replies:
    49
    Views:
    5,272
    DaveC426913
    May 13, 2018
  14. icarus2

    Dark matter is Negative mass!

    icarus2, May 2, 2018 ... 2 3
    Replies:
    48
    Views:
    1,264
    NotEinstein
    May 11, 2018
  15. Xmo1
    Redirect

    Astronomy

    Xmo1, May 5, 2018
    Replies:
    –
    Views:
    –
    N/A
  16. orcot

    Living inside a star

    orcot, Apr 25, 2018
    Replies:
    5
    Views:
    203
    orcot
    Apr 30, 2018
  17. sweetpea

    This is such a wow! picture

    sweetpea, Apr 26, 2018
    Replies:
    6
    Views:
    209
    nebel
    Apr 27, 2018
  18. Nathaniel Moikabi

    Bioastronomy

    Nathaniel Moikabi, Apr 23, 2018
    Replies:
    10
    Views:
    219
    sculptor
    Apr 26, 2018
  19. RainbowSingularity

    S.T.E.V.E is soo hot !

    RainbowSingularity, Mar 26, 2018
    Replies:
    1
    Views:
    276
    TheFrogger
    Apr 24, 2018
  20. RainbowSingularity

    Big White A Hole

    RainbowSingularity, Mar 29, 2018 ... 2
    Replies:
    29
    Views:
    686
    RainbowSingularity
    Apr 23, 2018
  21. Yazata
    Locked

    Tiangong 1 Reenters Over South Pacific

    Yazata, Apr 2, 2018 ... 2 3
    Replies:
    42
    Views:
    1,296
    James R
    Apr 23, 2018
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