VIP Cassini..We'll Miss Ya 😱

VIP Cassini..We'll miss ya 😱

September 15

This one is technically not yet history, because at the time of posting, the little craft has about half an hour left to go.  That said, let’s proceed.

In 2017, NASA’s Cassini space probe ended its twenty-year mission at Saturn.  After a nearly-seven-year-long journey there, it orbited the ringed planet for 13 years and just over two months, gathering copious amounts of information about the planet, said rings, and many of its moons.  It landed an ESA probe called Huygens on Titan, the first-ever soft landing in the outer Solar System.  It discovered lakes, seas, and rivers of methane on Titan, geysers of water erupting from Enceladus (and passed within 50 miles of that moon’s surface), and found gigantic, raging hurricanes at both of Saturn’s poles.  

And the images it returned are beautiful enough to make you weep.

On this day in 2017, with the fuel for Cassini’s directional thrusters running low, the probe was de-orbited into the Saturnian atmosphere to prevent any possibility of any contamination of possible biotic environments on Titan or Enceladus.  The remaining thruster fuel was used to keep the radio dish pointed towards Earth so the probe could transmit information about the upper atmosphere of Saturn while it was burning up due to atmospheric friction.

This is us at our best.  We spent no small amount of money on a nuclear-powered robot, launched it into space, sent it a billion miles away, and worked with it for two decades just to learn about another planet.  And when the repeatedly-extended missions were through, we made the little craft sacrifice itself like a samurai, performing its duty as long as it could while it became a shooting star in the Saturnian sky.

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Rhea occulting Saturn

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Water geysers on Enceladus

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Strange Iapetus

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Look at this gorgeousness

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A gigantic motherfucking storm in Saturn’s northern hemisphere

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Tethys

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This image is from the surface of a moon of a planet at least 746 million miles away.  Sweet lord

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Mimas

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Vertical structures in the rings.  Holy shit

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Titan and Dione occulting Saturn, rings visible

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Little Daphnis making gravitational ripples in the rings

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That’s here.  That’s home.  That’s all of us that ever lived.

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Saturn, backlit

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A polar vortex on the gas giant

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Icy Enceladus

(All images from NASA/JPL)

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8 years ago

I knew it 😃

Could Planets Like Those Imagined in Star Wars Be Real??

Look at what we’ve found so far. 

Is your favorite Star Wars planet a desert world or an ice planet or a jungle moon?

It’s possible that your favorite planet exists right here in our galaxy. Astronomers have found over 3,400 planets around other stars, called “exoplanets.”

Some of these alien worlds could be very similar to arid Tatooine, watery Scarif and even frozen Hoth, according to NASA scientists.

Find out if your planet exists in a galaxy far, far away or all around you.

Planets With Two Suns

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Were you going to the Tosche station to pick up some power converters? Hold on a minute and learn about Kepler-16b, 200 light-years from Earth. It’s the first honest-to-goodness planet ever found where you could watch two suns set like Luke. George Lucas himself even blessed its nickname ‘Tatooine.’ It’s not a perfect comparison: Kepler-16b is a cold gas giant roughly the size of Saturn. But don’t worry, kid.

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The best part is that Tatooine aka Kepler-16b was just the first. It has family. A LOT of family. Half the stars in our galaxy are pairs, rather than single stars like our sun. If every star has at least one planet, that’s billions of worlds with two suns. Billions! Maybe waiting for life to be found on them.

Desert Worlds

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If you’re like Finn and want to know why everyone wants to go back to Jakku desert planets, get this: Star Wars may be reflecting the real universe. Desert worlds are not only a very real possibility, but we think they are probably very common. They can be hot, like the fictional Tatooine and Jakku, or cold, like Jedha in “Rogue One” or our real planet Mars.

Perhaps it’s not so weird that both Luke and Rey grew up on planets that look suspiciously like each other. If you’re scouring the universe for a place to settle, you have a good chance of finding a desert planet.

Ice Planets

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There is a Hoth in our galaxy! Though not the same Hoth from “The Empire Strikes Back” (no invading Imperials, for one). The icy super-Earth reminded scientists so much of the frozen Rebel base they nicknamed it “Hoth.” The planet’s real name is OGLE 2005-BLG-390L.

Our galaxy’s Hoth is too cold to support life as we know it. But life may evolve under the ice of a different world, or a moon in our solar system.

We’re currently designing a mission to look for life under the crust of Jupiter’s icy moon Europa. We’re pretty sure ity won’t look like tauntauns, if it exists.

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Forest worlds

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Both the forest moon of Endor and Takodana, the home of Han Solo’s favorite cantina in “Force Awakens,” are green like our home planet. But astrobiologists think that plant life on other worlds could be red, black, or even rainbow-colored!

In August 2016, astronomers from the European Southern Observatory announced the discovery of Proxima Centauri b, a planet only four light-years away from Earth, which orbits a tiny red star.

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The light from a red star, also known as an M dwarf, is dim and mostly in the infrared spectrum (as opposed to the visible spectrum we see with our sun). And that could mean plants with wildly different colors than what we’re used to seeing on Earth. Or, animals that see in the near-infrared.

And Beyond

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The next few years will see the launch of a new generation of spacecraft to search for planets around other stars. TESS and the James Webb Telescope will go into space in 2018, and WFIRST in the mid-2020s. That’s one step closer to finding life.

You don’t need to visit a galaxy far, far away to find wondrous worlds. Just visit this one 
 there’s plenty to see.

Discover more about exoplanets here: https://exoplanets.nasa.gov/

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

8 years ago

Star Wars is Life

delightfulskywalker - đŸ„€
delightfulskywalker - đŸ„€
delightfulskywalker - đŸ„€
7 years ago

[slides nasa $20] so, tell me about the aliens

7 years ago

me: *is left alone with my thoughts for more than two seconds*

me: the suffering begins

6 years ago
“One Of The Most Interesting Conversations Chris [Hemsworth] And I Kept Having Was, ‘What Does Loki
“One Of The Most Interesting Conversations Chris [Hemsworth] And I Kept Having Was, ‘What Does Loki
“One Of The Most Interesting Conversations Chris [Hemsworth] And I Kept Having Was, ‘What Does Loki
“One Of The Most Interesting Conversations Chris [Hemsworth] And I Kept Having Was, ‘What Does Loki
“One Of The Most Interesting Conversations Chris [Hemsworth] And I Kept Having Was, ‘What Does Loki

“One of the most interesting conversations Chris [Hemsworth] and I kept having was, ‘What does Loki want in the end?’ What does he want? I was unable to come up with a definitive answer. Perhaps because I don’t think Loki even knows. He’s become so accustomed to occupying opposition. Whatever the status quo is, he’s opposed to it. That’s why he’s a trickster, a shapeshifter, a deceiver, a strategist, a manipulator.” (Hiddleston)


Tags
7 years ago
Han Solo In A Nutshell
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Han Solo In A Nutshell
Han Solo In A Nutshell
Han Solo In A Nutshell
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Han Solo In A Nutshell
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7 years ago
It’s Bigger Than Us, David Schermann
It’s Bigger Than Us, David Schermann
It’s Bigger Than Us, David Schermann
It’s Bigger Than Us, David Schermann
It’s Bigger Than Us, David Schermann
It’s Bigger Than Us, David Schermann
It’s Bigger Than Us, David Schermann

It’s Bigger Than Us, David Schermann

Vienna-based artist and photographer David Schermann explores concepts of existence, space, and love in his ongoing series It’s Bigger Than Us. 

Instagram.com/WeTheUrban

Keep reading

7 years ago

I think one of my favorite stories I’ve ever heard Mark Hamill tell is the one about how the first time he heard the score for A New Hope he got sort of jokingly offended because it seemed like every other character had a specific song for them and he didn’t and John Williams just looked at him and said “
The main theme is your song” and Mark was like “WHAT OMG” like he didn’t actually understand before that moment that he was the protagonist.


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"Hope is like the sun. If you only believe it when you see it, you'll never make it through the night." -Princess Leia

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