amazing science/nature images

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maurvir
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Post by maurvir »

juice wrote: I shouldn't have read the comments.

Never read the comments. :(
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TOS
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Post by TOS »

wow!!

Some 110 million years ago, this armored plant-eater lumbered through what is now western Canada, until a flooded river swept it into open sea. The dinosaur’s undersea burial preserved its armor in exquisite detail. Its skull still bears tile-like plates and a gray patina of fossilized skins.


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Post by DEyncourt »

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Post by TOS »

yeah, well, my mom says i'm cool so there
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Post by TOS »

the guatemalan volcano

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Image
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Post by jkahless »

Cool.
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Post by ukimalefu »

A ROBOT SMELLS FARTS ON MARS!

is it from martians? maybe, maybe not

NASA’s Curiosity rover has detected background levels of methane in the atmosphere of Mars, and these concentrations seem to go up in the summer and down in the winter, according to new research. Where the methane is coming from is still a mystery, but scientists have some ideas, including that microbes may be the source of the gas.


This seasonal cycle repeated through time and could come from an underground reservoir of methane, the study says. Whether that reservoir is a sign that there is or was life on Mars, however, is impossible to say for now.


https://www.theverge.com/2018/6/7/17434 ... robes-life

Does this thread really require images? oh, it's in the title, ok, here:

Image

sorry, no pics of the farting martian microbes (dibs on that band name)
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Post by TOS »

ohai

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Post by DEyncourt »

Meteor impact on Mars creates "slope streak" about a kilometer long:

Image


The crater made by that meteor is about 5 meters wide (so too small to be seen in the above). The debris surrounding the impact sites were probably due to the meteors--it looks like at least 8 smaller fragments calved off the main meteor--exploding upon impact. A much older and larger slope streak can be seen running roughly parallel to the left of the new one. The best guess is that the new one was made sometime within a decade before the image date of February 7, 2018.

The color portion is a combination of an RGB image with infra-red data in red and blue.
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Post by DEyncourt »

Simulation of what Opportunity on Mars is "seeing" during current Martian dust storm:

Image


Latest report was that Opportunity did NOT reply to an attempt to communicate with it yesterday evening. The 15-year-old rover is set to go into a minimal power mode when its batteries go below 24 volts. This state basically only runs the clock so that periodically Opportunity can be woken to check power levels.
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Post by maurvir »

I didn't realize that storm was covering a quarter of the Martian surface. Kind of makes you wonder if it's like Pitch Black in a way...
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Post by DEyncourt »

NASA posted this animation of the progress of the dust storm on Mars:

Image

Currently (and fortunately for Opportunity) Mars is heading into its northern spring when the planet's general temperature will get to its highest possible (in part due to Mars getting to its closest point to the Sun. Do note that Mars' orbit is much more eccentric than that of Earth such that the shape of Mars' orbit does significantly affect weather). Being close to the Martian Equator means that Opportunity had escaped most of the Martian temperature extremities BUT there is the possibility that a very long dust storm could reduce Opportunity's power to so low that it cannot recover.
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Post by DEyncourt »

The Bad Astronomer on "Andromeda’s Parachute":

Image


This is an image of a quasar (estimated to be 11 B light years away) having had its light on its way to Earth being bent by a gravitational lens created by a intervening galaxy (marked by the X and "G" in the left) 4 times.

He also notes that the differences in those images is in part due to each image taking its own path towards the Earth which can considerably differ in length, so in effect each is a snapshot showing the quasar evolving over time.
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Post by DEyncourt »

Astronomy Picture of the Day posted this June 10th image from Curiosity:

Image

showing how the Martian dust storm has spread to that rover almost on the other side of the planet from Opportunity.

It should be pointed out that Curiosity has a radioisotope thermoelectric generator and thus is not in danger of getting too low of electrical power.
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Post by ukimalefu »

those dust storm can cover the entire planet, this is known

or, the martians are hiding something
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Post by DEyncourt »

Pictures from 1960's Lunar Orbiters were deliberately downgraded for public release to obscure how good spy satellites were:

Image


The top was what was published in newspapers in 1966-7; the bottom was a reconstruction from a project that started in 2007 to pluck data off of the original 40-year-old tapes.

The actual pics created then used by NASA were blown up to 62 x 16 inch (1.58 x 0.40 m) images to help determine landing sites for Apollo:

Image

One set was a complete mosaic of the full Moon as seen from Earth which was 40 x 45 feet (12.20 x 13.72 m).
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Post by TOS »

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Post by maurvir »

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Post by user »

ukimalefu wrote: A ROBOT SMELLS FARTS ON MARS!

it dealt it
Aw, he's no fun, he fell right over.

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Post by DEyncourt »

Video tweet of Fernandina Island (in the Galapagos) of an eruption taking place there.
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Post by ukimalefu »

DEyncourt wrote: Video tweet of Fernandina Island (in the Galapagos) of an eruption taking place there.


twitter video doesn't work for me

it does sometimes when embedded in other websites, but never on twitter

(my old version of chrome could be to blame, but every other online video works)
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Post by DEyncourt »

ukimalefu wrote:
DEyncourt wrote: Video tweet of Fernandina Island (in the Galapagos) of an eruption taking place there.


twitter video doesn't work for me

it does sometimes when embedded in other websites, but never on twitter

(my old version of chrome could be to blame, but every other online video works)

Still works for me.

But are you saying that the video isn't playing, or that you cannot even get that link to work? Because even the frame that is shown as a preview of the video is pretty awesome.
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Post by ukimalefu »

DEyncourt wrote:
ukimalefu wrote:
DEyncourt wrote: Video tweet of Fernandina Island (in the Galapagos) of an eruption taking place there.


twitter video doesn't work for me

it does sometimes when embedded in other websites, but never on twitter

(my old version of chrome could be to blame, but every other online video works)

Still works for me.

But are you saying that the video isn't playing, or that you cannot even get that link to work? Because even the frame that is shown as a preview of the video is pretty awesome.


Everything loads but the video just won't play.

Yeah, that first frame is impressive, most impressive, very... Mustafar [/starwarsgeek]Image
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Post by Warin »


That is stick fiddling incredible. Thank you for posting it.
I'm sorry Dave...
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Post by ukimalefu »

Image

A self-portrait by NASA’s Curiosity rover taken on Sol 2082 (June 15, 2018). A Martian dust storm has reduced sunlight and visibility at the rover’s location in Gale Crater. A drill hole can be seen in the rock to the left of the rover at a target site called “Duluth.”

Credits: NASA/JPL-Caltech/MSSS


A dust storm hit just as Curiosity was drilling into that rock? what was inside? what are the martians trying to cover up with that "dust storm"? :suspicious:
Last edited by ukimalefu on Fri Jun 22, 2018 11:12 am, edited 1 time in total.
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Post by Séamas »

Doesn't the windspeed have to be crazy high in the thin atmosphere to pick up dust?
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Post by ukimalefu »

Séamas wrote: Doesn't the windspeed have to be crazy high in the thin atmosphere to pick up dust?


uhm... the low gravity makes it easy maybe?
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Post by DEyncourt »

ukimalefu wrote:
Séamas wrote: Doesn't the windspeed have to be crazy high in the thin atmosphere to pick up dust?


uhm... the low gravity makes it easy maybe?

Yeah, and those particles of "dust" are super-fine grit too. The lack of any significant atmospheric moisture makes clumping into larger particles that we expect on Earth impossible.
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Post by Ribtor »

It'll knock Matt Damon down.
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Post by TOS »

ukimalefu wrote: Image

A self-portrait by NASA’s Curiosity rover taken on Sol 2082 (June 15, 2018). A Martian dust storm has reduced sunlight and visibility at the rover’s location in Gale Crater. A drill hole can be seen in the rock to the left of the rover at a target site called “Duluth.”

Credits: NASA/JPL-Caltech/MSSS


A dust storm hit just as Curiosity was drilling into that rock? what was inside? what are the martians trying to cover up with that "dust storm"? :suspicious:


don't even joke ... there are endless conspiracy theories about nasa allegedly hiding massive signs of intelligent life on mars, the moon and beyond

pyramids, subways, monoliths, you name it
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Post by macnuke »

they have subways there? guess martians like sammiches too.

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Post by DEyncourt »

Ribtor wrote: It'll knock Matt Damon down.

Andy Weir did explain that he thought about using a more realistic though convoluted reason for aborting the Ares 3 mission (like a communications failure), but decided to stay with the Martian dust storm as a better complement to the overall theme of man vs. the Martian environment.
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Post by ukimalefu »

Image

Iceland
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Post by maurvir »

Good grief, that is breathtaking - even in photograph. I would really like to visit there at least once in my lifetime.
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Post by ukimalefu »

Image

Salar de Uyuni, Bolivia
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