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:
    7,440
    Tiassa
    Apr 22, 2016
  2. heyuhua

    Chinese Scholar Yang Jian liang Putting Wrongs to Rights in Astrophysics

    heyuhua, Apr 22, 2018 ... 22 23 24
    Replies:
    468
    Views:
    4,247
    NotEinstein
    Jun 24, 2018 at 2:25 PM
  3. Xmo1

    Black Holes coming this way.

    Xmo1, Jun 23, 2018 at 4:14 AM
    Replies:
    5
    Views:
    62
    James R
    Jun 24, 2018 at 5:18 AM
  4. Seattle

    How rare is life in our Universe?

    Seattle, Jun 18, 2018 at 8:07 AM ... 2 3
    Replies:
    44
    Views:
    332
    kx000
    Jun 23, 2018 at 10:15 PM
  5. Hayden

    Galactic Collision

    Hayden, Jun 21, 2018 at 3:56 PM ... 2
    Replies:
    20
    Views:
    140
    Janus58
    Jun 22, 2018 at 5:25 PM
  6. nebel

    Jupiter's Orbital Velocity & Equatorial Velocity cancel?

    nebel, Jul 31, 2017 ... 5 6 7
    Replies:
    139
    Views:
    3,646
    nebel
    Jun 22, 2018 at 4:09 AM
  7. Andrew256

    Dimension scale loop (for the lack of better term)

    Andrew256, Jun 14, 2018
    Replies:
    4
    Views:
    107
    Michael 345
    Jun 15, 2018
  8. nebel

    Where is most "gravity", inside or out?

    nebel, Feb 29, 2016 ... 8 9 10
    Replies:
    194
    Views:
    6,728
    nebel
    Jun 12, 2018
  9. Q-reeus

    Simple geometric proof GR's GW's are impossible

    Q-reeus, Jul 7, 2016 ... 15 16 17
    Replies:
    335
    Views:
    13,790
    Q-reeus
    Jun 9, 2018
  10. wangchaoqing

    Our Galaxy hosts the annihilation

    wangchaoqing, Jun 8, 2018
    Replies:
    1
    Views:
    87
    NotEinstein
    Jun 8, 2018
  11. Yazata

    Organic Chemicals on Mars

    Yazata, Jun 7, 2018
    Replies:
    1
    Views:
    67
    DaveC426913
    Jun 8, 2018
  12. nebel

    Mercury - Venus - Earth space drag?

    nebel, Sep 29, 2015 ... 2
    Replies:
    38
    Views:
    1,532
    nebel
    Jun 5, 2018
  13. Seattle

    How long do you think humans will be around?

    Seattle, Dec 16, 2017 ... 3 4 5
    Replies:
    80
    Views:
    3,061
    sculptor
    Jun 4, 2018
  14. paddoboy

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

    paddoboy, Dec 7, 2016 ... 2
    Replies:
    33
    Views:
    1,397
    Q-reeus
    May 25, 2018
  15. Dinosaur

    Planet 180 degrees from earth in same orbit?

    Dinosaur, May 9, 2009 ... 2 3
    Replies:
    49
    Views:
    5,294
    DaveC426913
    May 13, 2018
  16. icarus2

    Dark matter is Negative mass!

    icarus2, May 2, 2018 ... 2 3
    Replies:
    48
    Views:
    1,293
    NotEinstein
    May 11, 2018
  17. Xmo1
    Redirect

    Astronomy

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

    Living inside a star

    orcot, Apr 25, 2018
    Replies:
    5
    Views:
    209
    orcot
    Apr 30, 2018
  19. sweetpea

    This is such a wow! picture

    sweetpea, Apr 26, 2018
    Replies:
    6
    Views:
    216
    nebel
    Apr 27, 2018
  20. Nathaniel Moikabi

    Bioastronomy

    Nathaniel Moikabi, Apr 23, 2018
    Replies:
    10
    Views:
    222
    sculptor
    Apr 26, 2018
  21. RainbowSingularity

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

    RainbowSingularity, Mar 26, 2018
    Replies:
    1
    Views:
    283
    TheFrogger
    Apr 24, 2018
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