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:
    7,686
    Tiassa
    Apr 22, 2016
  2. nebel

    Question on Gravity at the equator. more or less?

    nebel, Oct 13, 2018 at 4:24 AM ... 2
    Replies:
    20
    Views:
    170
    RainbowSingularity
    Oct 15, 2018 at 9:25 AM
  3. sculptor

    Sky rivers

    sculptor, Oct 8, 2018
    Replies:
    0
    Views:
    87
    sculptor
    Oct 8, 2018
  4. nebel

    1 I/2017 UI Oumuamua

    nebel, Nov 26, 2017 ... 2 3
    Replies:
    44
    Views:
    2,400
    Gawdzilla Sama
    Oct 4, 2018
  5. nebel

    Where is most "gravity", inside or out?

    nebel, Feb 29, 2016 ... 11 12 13
    Replies:
    251
    Views:
    8,988
    nebel
    Sep 21, 2018
  6. Xmo1

    Telescope Vanes

    Xmo1, Jul 21, 2018 ... 2
    Replies:
    21
    Views:
    475
    Xelasnave.1947
    Sep 8, 2018
  7. Xelasnave.1947

    Narrow Band Imaging

    Xelasnave.1947, Aug 25, 2018 ... 2
    Replies:
    23
    Views:
    291
    Xelasnave.1947
    Sep 5, 2018
  8. Xmo1

    If the whole world population suddenly knew

    Xmo1, Jul 12, 2018 ... 2
    Replies:
    25
    Views:
    619
    Bowser
    Aug 27, 2018
  9. Gawdzilla Sama

    Atmospheric density development during terraforming.

    Gawdzilla Sama, Aug 20, 2018
    Replies:
    5
    Views:
    173
    RADII
    Aug 25, 2018
  10. Xmo1

    Black Holes coming this way.

    Xmo1, Jun 23, 2018 ... 2
    Replies:
    22
    Views:
    481
    Xmo1
    Aug 10, 2018
  11. Goldtop

    What's Space?

    Goldtop, Aug 3, 2018 ... 2 3 4
    Replies:
    62
    Views:
    989
    Seattle
    Aug 8, 2018
  12. Hayden

    Isotropic Universe

    Hayden, Jul 24, 2018 ... 2
    Replies:
    26
    Views:
    563
    NotEinstein
    Aug 1, 2018
  13. sculptor

    Young star eats it's infant planet:

    sculptor, Jul 29, 2018
    Replies:
    2
    Views:
    159
    Q-reeus
    Jul 30, 2018
  14. Gawdzilla Sama

    Sunlight per square, Mars v. Earth

    Gawdzilla Sama, Jul 26, 2018
    Replies:
    19
    Views:
    281
    Gawdzilla Sama
    Jul 28, 2018
  15. Hayden

    Age of the Universe

    Hayden, Jul 19, 2018 ... 2 3 4
    Replies:
    79
    Views:
    1,158
    origin
    Jul 26, 2018
  16. Hayden

    Source of Power (for motion)

    Hayden, Jul 24, 2018 ... 2
    Replies:
    36
    Views:
    526
    James R
    Jul 26, 2018
  17. Bowser

    What am I looking at?

    Bowser, Jul 12, 2018 ... 2
    Replies:
    26
    Views:
    496
    Xelasnave.1947
    Jul 22, 2018
  18. Xmo1

    Astronomical Observatory Live Stream List

    Xmo1, Jul 11, 2018
    Replies:
    4
    Views:
    180
    Xmo1
    Jul 20, 2018
  19. Dinosaur

    Communicating with ET cultures

    Dinosaur, Jul 19, 2018
    Replies:
    0
    Views:
    92
    Dinosaur
    Jul 19, 2018
  20. wangchaoqing
    Locked

    Our Galaxy hosts the annihilation

    wangchaoqing, Jun 8, 2018
    Replies:
    2
    Views:
    266
    James R
    Jul 12, 2018
  21. Hayden

    General Relativity and Dark Matter

    Hayden, Jul 1, 2018
    Replies:
    15
    Views:
    365
    Hayden
    Jul 2, 2018
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