Timeline for What is the minimum pressure of a purely CO₂ atmosphere on Europa that can retain enough heat for surface liquid water?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Aug 15, 2023 at 12:56 | comment | added | Uwe | @ErinAnne An Ultra High Vacuum (UHV) with 1 µbar is ten times the surface pressure of Europa. | |
| Aug 14, 2023 at 23:14 | comment | added | Erin Anne | @Uwe my engineering final project in uni was a Europa lander (DORRA the Europa Explorer, the paper is out in the wild) and every time someone said Europa has an atmosphere I reminded them that there's more atmosphere in a light bulb | |
| Aug 14, 2023 at 22:35 | answer | added | SE - stop firing the good guys | timeline score: 4 | |
| Aug 14, 2023 at 20:20 | comment | added | Uwe | For surface liquid water you need not only a temperature above 0.01 °C, you also need a surface pressure of more than 0.006 bar. But the surface pressure of Europa is much lower, about 100 nPa or 1 pbar (yes 1 picobar). | |
| Aug 14, 2023 at 17:43 | history | edited | Organic Marble |
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| Aug 14, 2023 at 17:22 | history | asked | cdemr | CC BY-SA 4.0 |