Well, OK, technically it’s the mantle, not the crust.
But it is thick. Super thick. And no gradations like the Earth.
Extrapolating to the known surface geology of the rest of the planet, this suggests an average thickness of between 24km and 72km. By contrast, Earth’s average crustal thickness is 15-20km.
So what does this mean?
For one thing, it probably explains why there’s no breathable atmosphere on Mars.
Mars never developed a global magnetic field to block solar radiation. So it’s atmosphere was basically ripped right off.
And any terraforming attempts in the future would fail on a global scale. But maybe locally it might work…
exploration, Mars, planets, reality, science, solar system, space •
Tags: Mars, NASA, planets, crust, mantle, InSight, magnetic field, Marsquake •
Mars doesn’t spin perfectly on its axis. In fact, it wobbles.
And no one knows why.
This makes Mars only the second planet in our solar system to exhibit what’s called the “Chandler wobble.”
The other planet?
Why, Earth, of course.
(And, no, nobody knows why. Hmm. Chandler?)
There’s a reason I didn’t post a while ago about the supposed “
there’s life in the clouds of Venus” finding.
It was just a big load of gas.
Sorry, folks. Venus is a big rotten egg. 🥚
astronomy, BS, exploration, fake news, news, reality, science, solar system, space •
Tags: alien life, aliens, ESA, fantasy, gas, NASA, outer space, planets, reality check, science, solar system, space, space exploration, sulfur, Venus, wishful thinking •
alien, astronomy, Big Brother, excuses, exploration, madness, news, politics, reality, space, spying, strangeness, technology, Trek, US •
Tags: Air Force, Captain, Command, Federation, Illogical, planets, Roddenberry, space, Space Force, Spock, Star Trek, Starfleet, Trump •
File under “strange reasons to study Earth science in school” and “things to do when you have far too much free time.”
astronomy, excuses, experiment, science, strangeness •
Tags: Earth, planets, reality check, sandwich, science, strangeness, surrealism •
“Without this instability, Mars likely would have had a mass closer to Earth’s and would be a very different, perhaps more Earth-like, planet compared to what it is today.”
Damn you, Jupiter and Saturn! Why couldn’t you have just stayed in your orbits and left Mars alone? (Shakes fist futilely at night sky.)
— Read on
asteroids, astronomy, Mars, science, solar system •
Tags: astronomy, Jupiter, Mars, NASA, outer space, planets, Saturn, science, solar system, space •
In February of 2017, a team of European astronomers announced the discovery
of a seven-planet system orbiting the nearby star TRAPPIST-1. Aside from
the fact that all seven planets were rocky, there was the added bonus of
three of them orbiting within TRAPPIST-1’s habitable zone. Since that time,
multiple studies have been conducted to determine whether or not any of
these planets could be habitable.
What’s up with the boring names?
I propose we call them Liesl, Friedrich, Louisa, Kurt, Brigitta, Marta, and Gretl. The most habitable is Kurt, because he’s so magnetic.
But the star, of course, is Maria.
— Read on www.universal-sci.com/headlines/2018/5/5/one-of-the-trappist-1-planets-has-an-iron-core
astronomy, exploration, family, Hollywood, movies, music, science, space •
Tags: astronomy, BetterThanProxima, core, exoplanets, exoplanetsareplanetstoo, iron, planets, Trappist, Von Trapp, Where in the World is Maria? •
The three choices fit IAU naming regulations and are associated with mythological creatures and figures that reflect aspects of 2007 OR10’s physical properties, which include rock, water ice, possibly methane ice, and a surface that’s red in color.
Your three choices?
Gonggong (共工, the bringer of floods 洪 and chaos)
Holle (which I always thought was Hulda or Holda)
Vili (which I knew as Wela in English class)
At least these scientists learned an important lesson from our recent past…
astronomy, China, contests, exploration, science, solar system •
Tags: astronomy, contests, Gonggong, Holle, planetoids, planets, space, Vili •