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:
    15,195
    Tiassa
    Jun 3, 2021
  2. arfa brane

    Cosmology 101 pop question

    arfa brane, Mar 12, 2023
    Replies:
    13
    Views:
    390
    arfa brane
    Mar 24, 2023 at 3:41 AM
  3. sculptor

    solstice pole

    sculptor, Mar 20, 2023
    Replies:
    12
    Views:
    242
    DaveC426913
    Mar 21, 2023
  4. Ishika

    black hole's information

    Ishika, Mar 16, 2023
    Replies:
    3
    Views:
    186
    DaveC426913
    Mar 17, 2023
  5. arfa brane

    New observations from JWST

    arfa brane, Mar 9, 2023
    Replies:
    0
    Views:
    231
    arfa brane
    Mar 9, 2023
  6. sculptor

    black holes source of dark energy?

    sculptor, Feb 17, 2023
    Replies:
    13
    Views:
    646
    Contemplation
    Mar 5, 2023
  7. sculptor

    the great attractor

    sculptor, Feb 16, 2023 ... 2
    Replies:
    23
    Views:
    1,055
    DaveC426913
    Feb 21, 2023
  8. ThazzarBaal

    Copernican Heresy

    ThazzarBaal, Feb 8, 2023 ... 2 3 4
    Replies:
    61
    Views:
    2,356
    exchemist
    Feb 18, 2023
  9. JEL

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

    JEL, Feb 7, 2023 ... 2 3
    Replies:
    51
    Views:
    2,090
    James R
    Feb 16, 2023
  10. Seattle

    What do you enjoy viewing in the night sky?

    Seattle, Jul 23, 2022 ... 2
    Replies:
    27
    Views:
    3,982
    wegs
    Jan 3, 2023
  11. wegs

    How is there wind on Mars?

    wegs, Nov 29, 2022 ... 2
    Replies:
    21
    Views:
    2,694
    billvon
    Dec 2, 2022
  12. Michael 345

    Our Solar system had a planet called George

    Michael 345, Nov 21, 2022
    Replies:
    2
    Views:
    1,244
    Michael 345
    Nov 21, 2022
  13. geordief

    James Webb Space Telescope

    geordief, Dec 24, 2021 ... 4 5 6
    Replies:
    104
    Views:
    12,738
    Michael 345
    Oct 2, 2022
  14. Michael 345

    DART

    Michael 345, Sep 13, 2022 ... 2
    Replies:
    26
    Views:
    2,004
    DaveC426913
    Sep 28, 2022
  15. wegs

    SpaceX launch

    wegs, Sep 25, 2022
    Replies:
    2
    Views:
    1,582
    wegs
    Sep 26, 2022
  16. trevor borocz johnson

    How to improve the parallax for stars

    trevor borocz johnson, Sep 19, 2022
    Replies:
    5
    Views:
    1,679
    Sarkus
    Sep 23, 2022
  17. Saint

    Why distant star's light can reach us?

    Saint, Jun 24, 2022 ... 2
    Replies:
    28
    Views:
    4,428
    Beaconator
    Sep 10, 2022
  18. Write4U

    Going to the moon to stay!

    Write4U, Sep 2, 2022
    Replies:
    6
    Views:
    1,812
    Yazata
    Sep 10, 2022
  19. wegs

    Light years?

    wegs, Jul 16, 2022 ... 5 6 7
    Replies:
    136
    Views:
    9,644
    Seattle
    Jul 24, 2022
  20. Saint

    Can we go to the Mars and come back safely?

    Saint, Jul 10, 2022
    Replies:
    11
    Views:
    2,032
    Saint
    Jul 12, 2022
  21. Michael 345

    Bone density in space

    Michael 345, Jul 1, 2022
    Replies:
    10
    Views:
    1,986
    Dicart
    Jul 8, 2022
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