saturn and uranus (solar house) created by vanadiumvalor
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The rest of Chapter 2 can be found on this Twitter thread !

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Annotations found on this page: [2], [3], [4]

[2] One field of interest the UOP plans to explore is habitability, explicitly concerning the presence of past and present ocean worlds and the system’s astrobiology.

Source: “Journey to an Ice Giant System: Uranus Orbiter & Probe”, Simon et al.

[3] 80% or more of Uranus’ mass is comprised of water, methane, and ammonia.

Source: NASA

[4] Since the 1940s, planetary scientists have known that the atmospheric compositions of Uranus and Neptune were significantly different from that of Jupiter and Saturn. Because the former were much smaller than the latter, it was assumed that Uranus and Neptune were made of gases much denser than hydrogen and helium. However, the term “ice giant” did not become popular until the 1980s.

Source: “Not a Heart of Ice”, Marley

Blacklisted

    Uranus' burp is made up of H2S, hydrogen sulfide, the stuff that gives rotten eggs their stink. Trace amounts of hydrogen sulfide are one component of that remaining 20% or less of Uranus' mass that's not water, methane, and ammonia. There may even be clouds of it in the lower atmosphere.

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