1,724 Posts

universetoday Hovering with Saturn's rings as a breathtaking backdrop is the moon Tethys, here captured by the Cassini spacecraft. NASA's black & white image gives the moon the stark presence it so deserves. The effect is striking, the patterns and gradients of shadow compelling the eye to explore.

Tethys was created from the Saturnian sub-nebula of dust and gas that coalesced around the planet after it formed. It has the lowest density of all the moons around Saturn owing to its being composed mostly of water ice and a small amount of rock. As it is made up of so much ice, it is the second brightest of all the moons after Enceladus.

Upon observation one might note that it resembles a certain Alderaan destroying metal planetoid due to the large crater Odysseus, that measures some 400km in diameter. Another fascinating feature is the large graben Ithaca Chasma spanning 2000 km across the surface. Discovered by Voyager 1 in 1980, it is up to 100km wide and 3-5 km deep. It is thought to have formed when the water interior froze and swelled in volume causing cracking and faulting. There is another moon of Saturn that also resembles Tethys with its large "Death Star" crater; that being Mimas with its famous Herschel crater.

In 1981, Voyager 2 glided past and further revealed the surface, expanding the evidence of significant cryovolcanism. Tethys continues to delight the imagination and beckons us with her shadowy mysteries.

Photo Credit: NASA

#astrophotography #astronomy #space #nightsky #tethys #saturn #beautiful #rings #cassini #nasa #voyager1 #voyager2 #deathstar #ithacachasma #herschel

Use the hashtag #universetoday to let us know about your photos. We might feature them here or on our website.

Written by Francisco Juárez - @juarezxmachina
58min

» LOG IN to write comment.

gaviriajewellery Tethys and Rhea by Cassini Spacecraft
"Watching the watcher"
#nasa #rhea #tethys #saturnmoon #galaxy #universe #spacecraft
8h

» LOG IN to write comment.

astro_giulia Saturn's moon #Tethys, picture taken by #Cassini spaceprobe!
I love this!
Goodnight
#Saturn #Rings #Space #Universe #Moon
21h

» LOG IN to write comment.

volvo940wagon PLEASE leave a comment! Pegs (top) or Tethys (bottom)? I have both sets ready to buy and they cost the same. (Note, these are not my pictures) #volvo #volvowagon #volvo940 #940 #pegs #tethys #help #wagonlife 22h

» LOG IN to write comment.

ocean.tethys پروژه : اجرای نمای هتل فیروزه
کارفرما : جناب آقای نجاتیان ( نیروهای مصلح )
تاریخ : ۱۳۹۱
نوع سنگ : تراورتن حاجی آباد ٬ دودی
آدرس : خیابان امام رضا ٬ خیابان دانش شرقی نبش عنصری ۳۶

#tethys#Design#Material#elevation#Stone#sang#سنگ#مصالح#پیمانکار#طراحی #مجری #پروژه#پیمانکاری#پروژه#اجرا#معماری#شرکت#تتیس#پیمانکارسنگ
1d

» LOG IN to write comment.

mucitpanda Bellek doğumdan sonraki ilk yıllarda ne kadar çok kullanılırsa, çocuğun okul çağlarında bilgi yüklenebilmesi ve görece ağır bu öğrenme süreciyle başa çıkabilmesi de o kadar kolaylaşır🏻🏻 Tethys 4 Parçalı Yapboz indirimli 17,20TL
#tethys #oyunkartları #yapboz #eşleştirme #beyin #çocukgelişimi #haydioynayalim #mp18ay #mp2yas
1d
  •   busra_bagcali Eşleştirilecek kaç farklı resim var, kargo ücreti var mı, varsa ne kadar @mucitpanda 1d
  •   mucitpanda @busra_bagcali 4lü olarak 6 resim oluşturabiliyorsunuz, toplam 23 kart var. Kargo 6,90TL. Alışverişiniz 75TL'yi aşmışsa kargonuzu biz ödüyoruz1d
  •   asliepik Nasıl sipariş veriyoruz ? 1d
  •   mucitpanda @asliepik mucitpanda.com'da arama bölümüne 4 Parçalı Yapboz yazıp siparişe devam edebilirsiniz 1d
  •   mucitpanda @busra_bagcali toplam 23 değil 24 kart bulunuyor elbette 1d

» LOG IN to write comment.

volcanojulie #Repost @nasa with @repostapp.
・・・
Ices and Shadows: Saturn's moon Tethys appears to float between two sets of rings in this view from our Cassini spacecraft, but it's just a trick of geometry. The rings, which are seen nearly edge-on, are the dark bands above Tethys, while their curving shadows paint the planet at the bottom of the image. Tethys (660 miles or 1,062 kilometers across) has a surface composed mostly of water ice, much like Saturn's rings. Water ice dominates the icy surfaces in the the far reaches of our solar system, but ammonia and methane ices also can be found.

Image Credit: NASA/JPL-Caltech/Space Science Institute

#nasa #space #saturn #cassini #tethys #astronomy #nasabeyond #science #geology
2d

» LOG IN to write comment.

astronomiaesp Ices and Shadows: Saturn's moon Tethys appears to float between two sets of rings in this view from our Cassini spacecraft, but it's just a trick of geometry. The rings, which are seen nearly edge-on, are the dark bands above Tethys, while their curving shadows paint the planet at the bottom of the image. Tethys (660 miles or 1,062 kilometers across) has a surface composed mostly of water ice, much like Saturn's rings. Water ice dominates the icy surfaces in the the far reaches of our solar system, but ammonia and methane ices also can be found.

Image Credit: NASA/JPL-Caltech/Space Science Institute

#nasa #space #saturn #cassini #tethys #astronomy #nasabeyond #science
2d

» LOG IN to write comment.

ocean.tethys پروژه : اجرای نما و داخلی آپارتمان مسکونی / ۳طبقه
مال فردا : جناب آقای میری
تاریخ : ۱۳۹۱
نوع سنگ : تراورتن کرم ، قهوه ای ، قرمز
آدرس : مشهد نخرسی بلوار چمن نبش چمن ۳۱ پلاک ۱۷

#tethys#Design#Material#elevation#Stone#sang#سنگ#مصالح#پیمانکار#طراحی #مجری#پروژه#پیمانکاری#پروژه#اجرا#معماری#شرکت#تتیس#پیمانکارسنگ
2d

» LOG IN to write comment.

ocean.tethys پروژه : اجرای سنگ نما و داخلی آپارتمان مسکونی . ۵ طبقه
کارفرما : جناب آقای عباسیان _ مهدویان
تاریخ : ۱۳۹۱
نوع سنگ :
نما ؛ تراورتن آتشکوه _ حاجی آباد
آدرس : مشهد وکیل آباد بلوار هاشمیه _ هاشمیه ۳۳/۱ پلاک ۱۰٫۱۲ . جنوبی
#tethys#Design#Material#elevation#Stone#sang#سنگ#مصالح#پیمانکار#طراحی #مجری#پروژه#پیمانکاری#پروژه#اجرا#معماری#شرکت#تتیس#پیمانکارسنگ
2d

» LOG IN to write comment.

muselady11 Your cosmic view: Tethys hanging out over Saturn, giving us a little optical illusion. Will the real rings please stand up? Turns out the rings are the lines above Tethys in the image; the lines below are their shadows cast on the planet's surface. :) #nasa #cassinimission #tethys #moonsofsaturn #saturn 2d

» LOG IN to write comment.

charzhanz Bonfire #tethys # narkanda 2d

» LOG IN to write comment.

ocean.tethys پروژه : اجرای سنگ نما و داخلی آپارتمان مسکونی .۶ طبقه
کارفرما : جناب آقای غفاریان
تاریخ : ۱۳۹۱
نوع سنگ :
نما ؛ تراورتن کرم _ قهوه ای
پله ؛ مرمریت خرم آباد
آدرس : مشهد وکیل آباد بلوار صارمی _ صارمی ۳۳/۱ پلاک ۳ . شمالی
#tethys#Design#Material#elevation#Stone#sang#سنگ#مصالح#پیمانکار#طراحی #مجری#پروژه#پیمانکاری#پروژه#اجرا#معماری#شرکت#تتیس#پیمانکارسنگ
2d

» LOG IN to write comment.

ocean.tethys پروژه : اجرای سنگ نما و داخلی آپارتمان مسکونی .۶ طبقه
کارفرما : جناب آقای مهندس شریفخانی مدیرعامل شرکت بهسازان شرق
تاریخ : ۱۳۹۱
نوع سنگ :
نما ؛ تراورتن دودی . کرم
پله ؛ مرمریت
آدرس : مشهد کوهسنگی ، خیابان حکیم نظامی نبش حکیم نظامی ۳۴

#tethys#Design#Material#elevation#Stone#sang#سنگ#مصالح#پیمانکار#طراحی #مجری#پروژه#پیمانکاری#پروژه#اجرا#معماری#شرکت#تتیس#پیمانکارسنگ
2d

» LOG IN to write comment.

Juno Tethys Eğitici Oyun Kartları
tethystore Yaratıcı anne babalardan, yaratıcı çocuklara... #tethys #tethystore #kidsroom #decor #cocukodasi #dekorasyon #karatahta #tebeşir #play #oyun 2d

» LOG IN to write comment.