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Astronomy Picture of the Day - Uranus's Largest Moon: Titania
NASA ^
| 31 Mar, 2026
| Image Credit: NASA, Voyager 2; Processing & License: zelario12
Posted on 03/31/2026 10:36:26 AM PDT by MtnClimber
Explanation: Titania's tortured terrain is a mix of canyons, cliffs, and craters. NASA's interplanetary robot spacecraft Voyager 2 passed the largest moon of Uranus in 1986 and took the feature picture. That the trenches of Titania resemble those on another moon of Uranus, Ariel, indicate that Titania underwent some violent surface event possibly related to water freezing and expanding in its distant past. Although Titania is Uranus's largest moon, it is only about half the radius of Triton - the largest moon of Uranus's sister planet Neptune, which itself is slightly smaller than Earth's Moon. Titania, discovered by William Herschel in 1787, is essentially a large dirty iceball that is composed of about half water-ice and half rock. There is recent speculation that radioactive heating melts some underground ice into oceans.
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
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To: MtnClimber
2
posted on
03/31/2026 10:36:44 AM PDT
by
MtnClimber
(For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list
🪐 🌟 🌌 🍔
Don't forget that the FR Q1 Fundraiser ends today and currently we are $4k behind.
3
posted on
03/31/2026 10:38:49 AM PDT
by
MtnClimber
(For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
To: MtnClimber
Uranus... Titania...
Let the Junior High Grade School remarks begin.
4
posted on
03/31/2026 10:41:49 AM PDT
by
Responsibility2nd
(Import the third world. Become the second world.)
To: MtnClimber
“Ill-met by moonlight...”
5
posted on
03/31/2026 10:43:38 AM PDT
by
BenLurkin
(The above is not a statement of fact. It is opinion or satire. Or both.)
To: MtnClimber
Looks like Uranus has a case of plumbers crack...
6
posted on
03/31/2026 10:46:43 AM PDT
by
Magnum44
(...against all enemies, foreign and domestic... )
To: MtnClimber
wow lookie all the asteroid hits.
7
posted on
03/31/2026 10:53:25 AM PDT
by
Karliner
(Heb 4:12 Rom 8:28 Rev 3, "...This is the end of the beginning." Churchill)
To: MtnClimber
8
posted on
03/31/2026 11:28:55 AM PDT
by
Sirius Lee
("Never argue with a fool, onlookers may not be able to tell the difference.)
To: MtnClimber
“A large dirty iceball”
I’ve been called worse.
9
posted on
03/31/2026 11:49:03 AM PDT
by
blueunicorn6
("A crack shot and a good dancer” )
To: MtnClimber
10
posted on
03/31/2026 11:54:24 AM PDT
by
No name given
( Anonymous is who you’ll know me as )
To: MtnClimber
Is this where titanium comes from? How is it shipped to the earth?
To: Responsibility2nd
I went to school with a girl named Titania.
12
posted on
03/31/2026 12:16:18 PM PDT
by
AppyPappy
(They don't call you a Nazi because they think you are one. They do it to justify violence. )
To: Karliner; MtnClimber
wow lookie all the asteroid hits. Celestial monkeypox. Heh.
13
posted on
03/31/2026 12:35:25 PM PDT
by
AFB-XYZ
(( We have two options: 1. Stand up, or 2. Bend over))
To: AFB-XYZ
14
posted on
03/31/2026 1:07:40 PM PDT
by
Karliner
(Heb 4:12 Rom 8:28 Rev 3, "...This is the end of the beginning." Churchill)
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