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:
    7,580
    Tiassa
    Apr 22, 2016
  2. Xmo1

    Telescope Vanes

    Xmo1, Jul 21, 2018
    Replies:
    19
    Views:
    286
    Write4U
    Aug 17, 2018 at 2:46 AM
  3. Xmo1

    Black Holes coming this way.

    Xmo1, Jun 23, 2018 ... 2
    Replies:
    22
    Views:
    307
    Xmo1
    Aug 10, 2018
  4. Goldtop

    What's Space?

    Goldtop, Aug 3, 2018 ... 2 3 4
    Replies:
    62
    Views:
    675
    Seattle
    Aug 8, 2018
  5. nebel

    Mercury - Venus - Earth space drag?

    nebel, Sep 29, 2015 ... 2
    Replies:
    39
    Views:
    1,735
    nebel
    Aug 6, 2018
  6. Xmo1

    If the whole world population suddenly knew

    Xmo1, Jul 12, 2018 ... 2
    Replies:
    22
    Views:
    284
    Xmo1
    Aug 4, 2018
  7. Hayden

    Isotropic Universe

    Hayden, Jul 24, 2018 ... 2
    Replies:
    26
    Views:
    406
    NotEinstein
    Aug 1, 2018
  8. sculptor

    Young star eats it's infant planet:

    sculptor, Jul 29, 2018
    Replies:
    2
    Views:
    90
    Q-reeus
    Jul 30, 2018
  9. Gawdzilla Sama

    Sunlight per square, Mars v. Earth

    Gawdzilla Sama, Jul 26, 2018
    Replies:
    19
    Views:
    174
    Gawdzilla Sama
    Jul 28, 2018
  10. nebel

    1 I/2017 UI Oumuamua

    nebel, Nov 26, 2017 ... 2 3
    Replies:
    40
    Views:
    2,049
    nebel
    Jul 26, 2018
  11. Hayden

    Age of the Universe

    Hayden, Jul 19, 2018 ... 2 3 4
    Replies:
    79
    Views:
    858
    origin
    Jul 26, 2018
  12. Hayden

    Source of Power (for motion)

    Hayden, Jul 24, 2018 ... 2
    Replies:
    36
    Views:
    332
    James R
    Jul 26, 2018
  13. nebel

    Where is most "gravity", inside or out?

    nebel, Feb 29, 2016 ... 9 10 11
    Replies:
    208
    Views:
    7,528
    nebel
    Jul 24, 2018
  14. Bowser

    What am I looking at?

    Bowser, Jul 12, 2018 ... 2
    Replies:
    26
    Views:
    347
    Xelasnave.1947
    Jul 22, 2018
  15. Xmo1

    Astronomical Observatory Live Stream List

    Xmo1, Jul 11, 2018
    Replies:
    4
    Views:
    109
    Xmo1
    Jul 20, 2018
  16. Dinosaur

    Communicating with ET cultures

    Dinosaur, Jul 19, 2018
    Replies:
    0
    Views:
    46
    Dinosaur
    Jul 19, 2018
  17. wangchaoqing
    Locked

    Our Galaxy hosts the annihilation

    wangchaoqing, Jun 8, 2018
    Replies:
    2
    Views:
    190
    James R
    Jul 12, 2018
  18. Hayden

    General Relativity and Dark Matter

    Hayden, Jul 1, 2018
    Replies:
    15
    Views:
    274
    Hayden
    Jul 2, 2018
  19. Hayden

    Galactic Collision

    Hayden, Jun 21, 2018 ... 2
    Replies:
    23
    Views:
    314
    origin
    Jun 27, 2018
  20. Seattle

    How rare is life in our Universe?

    Seattle, Jun 18, 2018 ... 2 3
    Replies:
    46
    Views:
    592
    gebobs
    Jun 25, 2018
  21. Andrew256

    Dimension scale loop (for the lack of better term)

    Andrew256, Jun 14, 2018
    Replies:
    4
    Views:
    163
    Michael 345
    Jun 15, 2018
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