This one is technically not yet history, because at the time of posting, the little craft has about half an hour left to go. Â That said, letâs proceed.
In 2017, NASAâs Cassini space probe ended its twenty-year mission at Saturn. Â 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. Â It landed an ESA probe called Huygens on Titan, the first-ever soft landing in the outer Solar System. Â It discovered lakes, seas, and rivers of methane on Titan, geysers of water erupting from Enceladus (and passed within 50 miles of that moonâs surface), and found gigantic, raging hurricanes at both of Saturnâs poles. Â
And the images it returned are beautiful enough to make you weep.
On this day in 2017, with the fuel for Cassiniâs 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. Â 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. Â 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. Â 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.
Rhea occulting Saturn
Water geysers on Enceladus
Strange Iapetus
Look at this gorgeousness
A gigantic motherfucking storm in Saturnâs northern hemisphere
Tethys
This image is from the surface of a moon of a planet at least 746 million miles away. Â Sweet lord
Mimas
Vertical structures in the rings. Â Holy shit
Titan and Dione occulting Saturn, rings visible
Little Daphnis making gravitational ripples in the rings
Thatâs here. Â Thatâs home. Â Thatâs all of us that ever lived.
Saturn, backlit
A polar vortex on the gas giant
Icy Enceladus
(All images from NASA/JPL)
 gd x top
I knew it đ
Is your favorite Star Wars planet a desert world or an ice planet or a jungle moon?
Itâs possible that your favorite planet exists right here in our galaxy. Astronomers have found over 3,400 planets around other stars, called âexoplanets.â
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.
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. Itâs the first honest-to-goodness planet ever found where you could watch two suns set like Luke. George Lucas himself even blessed its nickname âTatooine.â Itâs not a perfect comparison: Kepler-16b is a cold gas giant roughly the size of Saturn. But donât worry, kid.
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, thatâs billions of worlds with two suns. Billions! Maybe waiting for life to be found on them.
If youâre 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 âRogue Oneâ or our real planet Mars.
Perhaps itâs not so weird that both Luke and Rey grew up on planets that look suspiciously like each other. If youâre scouring the universe for a place to settle, you have a good chance of finding a desert planet.
There is a Hoth in our galaxy! Though not the same Hoth from âThe Empire Strikes Backâ (no invading Imperials, for one). The icy super-Earth reminded scientists so much of the frozen Rebel base they nicknamed it âHoth.â The planetâs real name is OGLE 2005-BLG-390L.
Our galaxyâs 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.
Weâre currently designing a mission to look for life under the crust of Jupiterâs icy moon Europa. Weâre pretty sure ity wonât look like tauntauns, if it exists.
Both the forest moon of Endor and Takodana, the home of Han Soloâs favorite cantina in âForce Awakens,â 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.
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 weâre used to seeing on Earth. Or, animals that see in the near-infrared.
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. Thatâs one step closer to finding life.
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
Star Wars is Life
[slides nasa $20] so, tell me about the aliens
me: *is left alone with my thoughts for more than two seconds*
me: the suffering begins
âOne of the most interesting conversations Chris [Hemsworth] and I kept having was, âWhat does Loki want in the end?â What does he want? I was unable to come up with a definitive answer. Perhaps because I donât think Loki even knows. Heâs become so accustomed to occupying opposition. Whatever the status quo is, heâs opposed to it. Thatâs why heâs a trickster, a shapeshifter, a deceiver, a strategist, a manipulator.â (Hiddleston)
Han Solo in a nutshell
Itâs Bigger Than Us, David Schermann
Vienna-based artist and photographer David Schermann explores concepts of existence, space, and love in his ongoing series Itâs Bigger Than Us.Â
Instagram.com/WeTheUrban
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I think one of my favorite stories Iâve 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 didnât and John Williams just looked at him and said ââŠThe main theme is your songâ and Mark was like âWHAT OMGâ like he didnât actually understand before that moment that he was the protagonist.
"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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