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Joined 3 years ago
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Cake day: June 17th, 2023

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  • On the plus side, we live at a time where we can still observe the cosmic microwave background radiation and total solar eclipses.

    Since the moon’s orbit grows by 3" every year, after a few million years it’ll be far enough away that it won’t completely eclipse the sun anymore.

    And in a billion year’s time, the CMB will be redshifted so far into deep radio wavelengths that it’ll be impossible to observe










  • Notice the exception is written very specifically just to keep pluto from “clearing” is orbit.

    There are tons of other Kuiper Belt objects in Pluto’s orbit. This wasn’t an exception written to spite Pluto. If you can attribute any malice to the definition, it comes from not wanting to include Eris, Sedna, Makemake, Quorua, and 200+ other Kuiper Belt objects as planets. Pluto was just caught in the crossfire because it fits with the other Kuiper Belt objects because it is one.

    “orbit the Sun”. Not a star but very specifically the Sun.

    This is a level of knitpicking that is completely childish. Grow up.





  • What’s important though is that it’s large enough to hold an atmosphere (at least if it had one).

    Define an atmosphere. Because there’s multiple asteroids that technically have one, albeit extremely thin ones. And be careful about being too nitpicky, as Mercury’s atmosphere is just it’s rock being vaporized due to its proximity to the sun