The Size Of The Sun As Seen From Each Planet

Venus has LOCKED tectonic plates??? How does that work? How are they even counted as individual plates if it’s the tectonic equivalent of Pangea?

it's not so much that Venus's tectonic plates are locked, it's more that it never had them in the first place!

which is a major surprise, actually, because Venus is the most Earth-like of the other planets in our solar system.

surprise?

"what," you may say, flailing in consternation, "about Mars?? why are we trying to colonize Mars if Venus is more Earth-like???"

and it's a good question! Venus IS technically more Earth-like in the sense that it's right next door, is a solid 80% the size of Earth, and has both a working atmosphere and a liquid mantle composed of molten rock, BUT- it's also important to note that Venus is the hottest planet in the solar system and it rains boiling sulfuric acid at almost all times! our first probes to the damn place actually melted. MELTED.

this is what Hell looks like.

BUT ANYWAY so Venus is the planet in our solar system that's the MOST physically similar to Earth, our dear mother who does not rain boiling sulfuric acid on our heads hardly at all ever, so it's kind of a shock that its geology is COMPLETELY FUCKING DIFFERENT.

see, Earth's outer crust is broken up into a series of mind-breakingly-massive tectonic plates that sort of skid around on top of the liquid mantle, slowly drifting in different directions driven by Earth's rotation and bonking into each other randomly like a 300-million-year-long Pinball tournament!

but on Venus, the entire outer crust is a single solid piece sitting on top of the liquid mantle, like the peel of an orange.

though not as good for you. because of the whole Boiling Acid thing.

and contrary to what you might think, this actually makes Venus a VERY VIOLENT place! the outer crust twists and deforms slightly as the liquid mantle spins under it, like a water balloon being flung repeatedly against a wall by a small child, but all of that force can't really be dispersed because the crust is a single solid piece of rigid rock!

so what happens is that this force builds and builds and BUILDS until Venus can't take the strain anymore and has a very volcanic tantrum about it.

unlike the rest of the solar system, the surface of Venus is made of relatively new and entirely volcanic rock- because the entire planet is basically having a planet-wide eruption event at all times, with multiple huge volcanos just spewing gigantic amounts of liquid rock everywhere like it's their damn job, to the point where Venus is just getting resurfaced like a McDonalds parking lot every epoch or so.

aren't you glad Earth doesn't do this? I am SO glad Earth doesn't do this.

(much, anyway)

uh anyway that's why we're trying to colonize Mars instead, and why plate tectonics are a GOOD thing! thanks for coming to my TED talk bye

“This is an image of the Cartwheel Galaxy taken with the NASA/ESA (European Space Agency) Hubble Space Telescope.

The object was first spotted on wide-field images from the U.K. Schmidt telescope and then studied in detail using the Anglo-Australian Telescope. Lying about 500 million light-years away in the constellation of Sculptor, the cartwheel shape of this galaxy is the result of a violent galactic collision. A smaller galaxy has passed right through a large disk galaxy and produced shock waves that swept up gas and dust — much like the ripples produced when a stone is dropped into a lake — and sparked regions of intense star formation (appearing blue). The outermost ring of the galaxy, which is 1.5 times the size of our Milky Way, marks the shock wave’s leading edge. This object is one of the most dramatic examples of the small class of ring galaxies.” Credit- nasa.gov

david_shute

New from Tornado Titans!

From @btsullivan91 - A stunning sunset mothership supercell over Roswell, New Mexico last night! The storm produced a powerful dust storm and destructive hail up to 3 inches in diameter! #newmexico #nmwx #storm #ufo #nature #skyporn #cloudporn #sunset #sun #sky #weather https://instagr.am/p/CPddgEGrFIW/

A rendering (Motion Edit) of a thunderstorm, based on a single photograph of a cumulonimbus cloud lit by a lighting, captured by night from an airliner at 40,000ft (12,000m), visualize a towering cumulus convection emerging from an altocumulus cloud cover.

An altocumulus cloud cover from below.

What are Trans-Neptunian object?

A trans-Neptunian object (TNO), also written transneptunian object, is any minor planet or dwarf planet in the Solar System that orbits the Sun at a greater average distance than Neptune, which has a semi-major axis of 30.1 astronomical units (AU).

The first trans-Neptunian object to be discovered was Pluto in 1930. It took until 1992 to discover a second trans-Neptunian object orbiting the Sun directly, 15760 Albion. The most massive TNO known is Eris, followed by Pluto, Haumea, Makemake, and Gonggong. source

ancient greek word of the day: κλονοκάρδιος (klonokardios), heart-stirring, epith. of the thunderbolt