Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. Seattle

    How rare is life in our Universe?

    Seattle, Jun 18, 2018 ... 2 3
    Replies:
    46
    Views:
    2,703
    gebobs
    Jun 25, 2018
  2. Hayden

    Galactic Collision

    Hayden, Jun 21, 2018 ... 2
    Replies:
    23
    Views:
    1,287
    origin
    Jun 27, 2018
  3. Xmo1

    Black Holes coming this way.

    Xmo1, Jun 23, 2018 ... 2
    Replies:
    22
    Views:
    2,046
    Xmo1
    Aug 10, 2018
  4. Hayden

    General Relativity and Dark Matter

    Hayden, Jul 1, 2018
    Replies:
    15
    Views:
    1,022
    Hayden
    Jul 2, 2018
  5. Xmo1

    Astronomical Observatory Live Stream List

    Xmo1, Jul 11, 2018
    Replies:
    4
    Views:
    703
    Xmo1
    Jul 20, 2018
  6. Xmo1

    If the whole world population suddenly knew

    Xmo1, Jul 12, 2018 ... 2
    Replies:
    25
    Views:
    2,305
    Bowser
    Aug 27, 2018
  7. Bowser

    What am I looking at?

    Bowser, Jul 12, 2018 ... 2
    Replies:
    26
    Views:
    2,180
    Xelasnave.1947
    Jul 22, 2018
  8. Hayden

    Age of the Universe

    Hayden, Jul 19, 2018 ... 2 3 4
    Replies:
    79
    Views:
    3,977
    origin
    Jul 26, 2018
  9. Dinosaur

    Communicating with ET cultures

    Dinosaur, Jul 19, 2018
    Replies:
    0
    Views:
    411
    Dinosaur
    Jul 19, 2018
  10. Xmo1

    Telescope Vanes

    Xmo1, Jul 21, 2018 ... 2
    Replies:
    21
    Views:
    2,408
    Xelasnave.1947
    Sep 8, 2018
  11. Hayden

    Isotropic Universe

    Hayden, Jul 24, 2018 ... 2
    Replies:
    26
    Views:
    2,158
    NotEinstein
    Aug 1, 2018
  12. Hayden

    Source of Power (for motion)

    Hayden, Jul 24, 2018 ... 2
    Replies:
    36
    Views:
    2,309
    James R
    Jul 26, 2018
  13. Gawdzilla Sama

    Sunlight per square, Mars v. Earth

    Gawdzilla Sama, Jul 26, 2018
    Replies:
    19
    Views:
    1,115
    Gawdzilla Sama
    Jul 28, 2018
  14. sculptor

    Young star eats it's infant planet:

    sculptor, Jul 29, 2018
    Replies:
    2
    Views:
    822
    Q-reeus
    Jul 30, 2018
  15. Goldtop

    What's Space?

    Goldtop, Aug 3, 2018 ... 2 3 4
    Replies:
    62
    Views:
    4,935
    Seattle
    Aug 8, 2018
  16. Gawdzilla Sama

    Atmospheric density development during terraforming.

    Gawdzilla Sama, Aug 20, 2018
    Replies:
    5
    Views:
    870
    RADII
    Aug 25, 2018
  17. Xelasnave.1947

    Narrow Band Imaging

    Xelasnave.1947, Aug 25, 2018 ... 2 3 4
    Replies:
    70
    Views:
    5,134
    Write4U
    Feb 24, 2019
  18. sculptor

    Sky rivers

    sculptor, Oct 8, 2018
    Replies:
    0
    Views:
    805
    sculptor
    Oct 8, 2018
  19. nebel

    Question on Gravity at the equator. more or less?

    nebel, Oct 13, 2018 ... 3 4 5
    Replies:
    92
    Views:
    7,070
    nebel
    Nov 21, 2018
  20. nebel

    exobiology: floating exo life ?

    nebel, Oct 22, 2018
    Replies:
    6
    Views:
    947
    nebel
    Oct 24, 2018
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