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:
    6
    Views:
    14,776
    Tiassa
    Jun 3, 2021
  2. ThazzarBaal

    Copernican Heresy

    ThazzarBaal, Feb 8, 2023 at 2:16 AM
    Replies:
    4
    Views:
    53
    DaveC426913
    Feb 8, 2023 at 8:50 PM
  3. JEL

    Is the gravitational center of the solar-system relative to planetary position?

    JEL, Feb 7, 2023 at 3:55 AM
    Replies:
    10
    Views:
    126
    DaveC426913
    Feb 8, 2023 at 4:14 PM
  4. Seattle

    What do you enjoy viewing in the night sky?

    Seattle, Jul 23, 2022 ... 2
    Replies:
    27
    Views:
    3,016
    wegs
    Jan 3, 2023
  5. wegs

    How is there wind on Mars?

    wegs, Nov 29, 2022 ... 2
    Replies:
    21
    Views:
    1,749
    billvon
    Dec 2, 2022
  6. Michael 345

    Our Solar system had a planet called George

    Michael 345, Nov 21, 2022
    Replies:
    2
    Views:
    815
    Michael 345
    Nov 21, 2022
  7. geordief

    James Webb Space Telescope

    geordief, Dec 24, 2021 ... 4 5 6
    Replies:
    104
    Views:
    10,805
    Michael 345
    Oct 2, 2022
  8. Michael 345

    DART

    Michael 345, Sep 13, 2022 ... 2
    Replies:
    26
    Views:
    1,546
    DaveC426913
    Sep 28, 2022
  9. wegs

    SpaceX launch

    wegs, Sep 25, 2022
    Replies:
    2
    Views:
    1,152
    wegs
    Sep 26, 2022
  10. trevor borocz johnson

    How to improve the parallax for stars

    trevor borocz johnson, Sep 19, 2022
    Replies:
    5
    Views:
    1,253
    Sarkus
    Sep 23, 2022
  11. Saint

    Why distant star's light can reach us?

    Saint, Jun 24, 2022 ... 2
    Replies:
    28
    Views:
    3,525
    Beaconator
    Sep 10, 2022
  12. Write4U

    Going to the moon to stay!

    Write4U, Sep 2, 2022
    Replies:
    6
    Views:
    1,411
    Yazata
    Sep 10, 2022
  13. wegs

    Light years?

    wegs, Jul 16, 2022 ... 5 6 7
    Replies:
    136
    Views:
    7,628
    Seattle
    Jul 24, 2022
  14. Saint

    Can we go to the Mars and come back safely?

    Saint, Jul 10, 2022
    Replies:
    11
    Views:
    1,578
    Saint
    Jul 12, 2022
  15. Michael 345

    Bone density in space

    Michael 345, Jul 1, 2022
    Replies:
    10
    Views:
    1,533
    Dicart
    Jul 8, 2022
  16. Tiassa

    Fast Radio Burst: FRB 190520 Remains Mysterious

    Tiassa, Jul 8, 2022
    Replies:
    0
    Views:
    1,396
    Tiassa
    Jul 8, 2022
  17. wegs

    Can a full moon make strange things happen?

    wegs, Apr 16, 2021 ... 2
    Replies:
    20
    Views:
    4,634
    C C
    Apr 26, 2022
  18. icarus2

    The source of dark energy is total gravitational potential energy!

    icarus2, Mar 26, 2022
    Replies:
    13
    Views:
    2,030
    icarus2
    Apr 24, 2022
  19. sculptor

    equinox

    sculptor, Mar 22, 2022
    Replies:
    1
    Views:
    230
    Jeeves
    Mar 23, 2022
  20. Pine_net

    NASA is just now opening a vacuum-sealed sample it took from the moon 50 years ago

    Pine_net, Mar 10, 2022
    Replies:
    0
    Views:
    1,828
    Pine_net
    Mar 10, 2022
  21. paddoboy
    Locked

    Why is there any matter in the universe at all? New study sheds light

    paddoboy, Feb 28, 2020 ... 2
    Replies:
    35
    Views:
    5,458
    James R
    Jan 2, 2022
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