Space
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^^ There are stars out there that are so big that if we flew a 767 at its cruising speed of 528 mph, around the equator of it, it would take almost 1200 years to circle it once.
And we NYers think Australia is a long flight!0 -
NGC 6334: The Cat's Paw Nebula
Nebulas are perhaps as famous for being identified with familiar shapes as perhaps cats are for getting into trouble. Still, no known cat could have created the vast Cat's Paw Nebula visible in Scorpius. At 5,500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms.
Alternatively known as the Bear Claw Nebula or NGC 6334, stars nearly ten times the mass of our Sun have been born there in only the past few million years. Pictured here is a deep field image of the Cat's Paw Nebula in light emitted by hydrogen, oxygen, and sulfur.2 -
Cassini was such a great spacecraft that gave us so much good data. RIP Cassini.0
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Galaxy NGC 4579
Galaxy NGC 4579 was captured by the Spitzer Infrared Nearby Galaxy Survey, or Sings, Legacy project using the Spitzer Space Telescope infrared array camera.2 -
Cassini Holiday Greetings
Date Created: 2004-Dec-242 -
This six-image mosaic from NASA's Cassini spacecraft captures Saturn, its rings and the planet's giant moon Titan. The probe snapped the shots on May 6, 2012, when it was about 483,000 miles from Titan. Image scale is 29 miles per pixel on Titan.0 -
thesunmoonandstars wrote: »
Don't know, I assume it's one of Saturn's 53 moons.1 -
Enceladus Stetting Behind Saturn
Saturn's active, ocean-bearing moon Enceladus sinks behind the giant planet in a farewell portrait from NASA's Cassini spacecraft. This view of Enceladus was taken by NASA's Cassini spacecraft on Sept. 13, 2017. It is among the last images Cassini sent back. The view is part of a movie sequence of images taken over a period of 40 minutes as the icy moon passed behind Saturn from the spacecraft's point of view.
Images taken using red, green and blue spectral filters were assembled to create the natural color view. (A monochrome version of the image, taken using a clear spectral filter, is also available.) The images were taken using Cassini's narrow-angle camera at a distance of 810,000 million miles (1.3 million kilometers) from Enceladus and about 620,000 miles (1 million kilometers) from Saturn.
Image scale on Enceladus is 5 miles (8 kilometers) per pixel.
A movie is available at https://photojournal.jpl.nasa.gov/catalog/PIA218891 -
thesunmoonandstars wrote: »
Don't know, I assume it's one of Saturn's 53 moons.
Saturn has 62 moons of which 53 are named.
http://coolcosmos.ipac.caltech.edu/ask/119-How-many-moons-does-Saturn-have-0 -
thesunmoonandstars wrote: »
Don't know, I assume it's one of Saturn's 53 moons.
Saturn has 62 moons of which 53 are named.
http://coolcosmos.ipac.caltech.edu/ask/119-How-many-moons-does-Saturn-have-0 -
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Monkey_Business wrote: »thesunmoonandstars wrote: »
Don't know, I assume it's one of Saturn's 53 moons.
Saturn has 62 moons of which 53 are named.
http://coolcosmos.ipac.caltech.edu/ask/119-How-many-moons-does-Saturn-have-
I only talk about official moons. Not want to be hack moons that should go join Pluto in the corner where all the uncool moons hang out.0 -
Impact Site: Cassini's Final Image
This monochrome view is the last image taken by the imaging cameras on NASA's Cassini spacecraft. It looks toward the planet's night side, lit by reflected light from the rings, and shows the location at which the spacecraft would enter the planet's atmosphere hours later.
A natural color view, created using images taken with red, green and blue spectral filters, is also provided (Figure not provided). The imaging cameras obtained this view at approximately the same time that Cassini's visual and infrared mapping spectrometer made its own observations of the impact area in the thermal infrared.
This location -- the site of Cassini's atmospheric entry -- was at this time on the night side of the planet, but would rotate into daylight by the time Cassini made its final dive into Saturn's upper atmosphere, ending its remarkable 13-year exploration of Saturn.
The view was acquired on Sept. 14, 2017 at 19:59 UTC (spacecraft event time). The view was taken in visible light using the Cassini spacecraft wide-angle camera at a distance of 394,000 miles (634,000 kilometers) from Saturn.
Image scale is about 11 miles (17 kilometers).
The original image has a size of 512x512 pixels.
A movie is available at https://photojournal.jpl.nasa.gov/catalog/PIA218951 -
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Monkey_Business wrote: »thesunmoonandstars wrote: »
Don't know, I assume it's one of Saturn's 53 moons.
Saturn has 62 moons of which 53 are named.
http://coolcosmos.ipac.caltech.edu/ask/119-How-many-moons-does-Saturn-have-
I only talk about official moons. Not want to be hack moons that should go join Pluto in the corner where all the uncool moons hang out.
Because of where most moons are located, are not (at in part) cool moons? I mean they may have their own lunch room table, but the dark side is pretty cool.0 -
Soaring Over Jupiter
This striking image of Jupiter was captured by NASA's Juno spacecraft as it performed its eighth flyby of the gas giant planet.
The image was taken on Sept. 1, 2017 at 2:58 p.m. PDT (5:58 p.m. EDT). At the time the image was taken, the spacecraft was 4,707 miles (7,576 kilometers) from the tops of the clouds of the planet at a latitude of about -17.4 degrees.1 -
Taking a 3-D Slice of Hurricane Maria's Cloud Structure
NASA's CloudSat satellite flew over Hurricane Maria on Sept. 17, 2017, at 1:23 p.m. EDT (17:23 UTC) as the storm had just strengthened into a hurricane in the Atlantic Ocean. Hurricane Maria contained estimated maximum sustained winds of 75 miles per hour (65 knots) and had a minimum barometric pressure of 986 millibars.
CloudSat flew over Maria through the center of the rapidly intensifying storm, directly through an overshooting cloud top (a dome-shaped protrusion that shoots out of the top of the anvil cloud of a thunderstorm).
CloudSat reveals the vertical extent of the overshooting cloud top, showing the estimated height of the cloud to be 11 miles (18 kilometers). Areas of high reflectivity with deep red and pink colors extend well above 9 miles (15 kilometers) in height, showing large amounts of water being drawn upward high into the atmosphere.
A movie is available at https://photojournal.jpl.nasa.gov/catalog/PIA219611 -
Layers in Galle Crater
This image shows a layered deposit in Galle Crater, located in the Southern cratered highlands. The geologic history of Galle Crater is not well constrained, and it contains a variety of features that have been interpreted as fluvial, lacustrine or glacial deposits.
The deposit pictured here contains multiple unconformities (sudden or irregular changes from one deposit to another), indicating periods of erosion and non deposition. The map is projected here at a scale of 25 centimeters (9.8 inches) per pixel.1 -
Investigating Mars: Siton Undae
Siton Undae is a large dune field located in the northern plains near Escorial Crater. Siton Undae is west of the crater and is one of three dune fields near the crater. The nearby north polar cap is dissected by Chasma Boreale, which exposes an ice free surface. This image shows part of dune field just west of Escorial Crater (just off the top of image).
The Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69000 times. It holds the record for longest working spacecraft at Mars. THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions.
Over the years many features of interest have received repeated imaging, building up a suite of images covering the entire feature. From the deepest chasma to the tallest volcano, individual dunes inside craters and dune fields that encircle the north pole, channels carved by water and lava, and a variety of other feature, THEMIS has imaged them all.
For the next several months the image of the day will focus on the Tharsis volcanoes, the various chasmata of Valles Marineris, and the major dunes fields.1 -
Investigating Mars: Siton Undae
Siton Undae is a large dune field located in the northern plains near Escorial Crater. Siton Undae is west of the crater and is one of three dune fields near the crater. The nearby north polar cap is dissected by Chasma Boreale, which exposes an ice free surface. This image shows part of dune field just west of Escorial Crater (just off the top of image).
The Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69000 times. It holds the record for longest working spacecraft at Mars. THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions.
Over the years many features of interest have received repeated imaging, building up a suite of images covering the entire feature. From the deepest chasma to the tallest volcano, individual dunes inside craters and dune fields that encircle the north pole, channels carved by water and lava, and a variety of other feature, THEMIS has imaged them all.
For the next several months the image of the day will focus on the Tharsis volcanoes, the various chasmata of Valles Marineris, and the major dunes fields.
But...are there giant worms there, that we can ride on?0 -
Space both fascinates and scares me. Just the word "space"...like a void.. the universe is infinite, makes me feel insignificant. Also, the Fermi Paradox is equally terrifying. Since the universe is infinite surely one of the alien species should have invented technology so powerful they can traverse it in it's entirety so why haven't we met them?0
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amorfati601070 wrote: »Space both fascinates and scares me. Just the word "space"...like a void.. the universe is infinite, makes me feel insignificant. Also, the Fermi Paradox is equally terrifying. Since the universe is infinite surely one of the alien species should have invented technology so powerful they can traverse it in it's entirety so why haven't we met them?
Physicist Enrico Fermi, said to be a firm believer in the existence of extra-terrestrials, was frustrated by the lack of firm evidence of their existence. Reasoning that advanced civilizations should by now have filled the Galaxy, Fermi came downstairs for lunch one afternoon at Los Alamos and blurted out his now-famous question, "Where are they?"
"They are among us," it is reported that Hungarian-born physicist Leo Szilard responded, "but they call themselves Hungarians."
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amorfati601070 wrote: »Space both fascinates and scares me. Just the word "space"...like a void.. the universe is infinite, makes me feel insignificant. Also, the Fermi Paradox is equally terrifying. Since the universe is infinite surely one of the alien species should have invented technology so powerful they can traverse it in it's entirety so why haven't we met them?
Because they are not on our 'friends list' in MFP silly. You have to send them an invite.0 -
Investigating Mars: Coprates Chasma
Coprates Chasma is one of the numerous canyons that make up Valles Marineris. The chasma stretches for 960 km (600 miles) from Melas Chasma to the west and Capri Chasma to the east. Landslide deposits, layered materials and sand dunes cover a large portion of the chasma floor.
This image is located on the eastern side of Coprates Chasma, near Capri Chasma. The image shows multiple landslide features, which form lobed shaped deposits at the bottom of the canyon cliff face. Sand dunes are visible both on the landslide deposit and other parts of the canyon floor. The Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69000 times. It holds the record for longest working spacecraft at Mars.
THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions. Over the years many features of interest have received repeated imaging, building up a suite of images covering the entire feature. From the deepest chasma to the tallest volcano, individual dunes inside craters and dune fields that encircle the north pole, channels carved by water and lava, and a variety of other feature, THEMIS has imaged them all.
For the next several months the image of the day will focus on the Tharsis volcanoes, the various chasmata of Valles Marineris, and the major dunes fields.1 -
Sizzling Remains of a Dead Star
This new view of the historical supernova remnant Cassiopeia A, located 11,000 light-years away, was taken by NASA Nuclear Spectroscopic Telescope Array, or NuSTAR. While the star is long dead, its remains are still bursting with action.2 -
95 Minutes Over Jupiter
This sequence of color-enhanced images shows how quickly the viewing geometry changes for NASA's Juno spacecraft as it swoops by Jupiter.
The images were obtained by JunoCam. Once every 53 days, Juno swings close to Jupiter, speeding over its clouds. In just two hours, the spacecraft travels from a perch over Jupiter's north pole through its closest approach (perijove), then passes over the south pole on its way back out. This sequence shows 11 color-enhanced images from Perijove 8 (Sept. 1, 2017) with the south pole on the left (11th image in the sequence) and the north pole on the right (first image in the sequence).
The first image on the right shows a half-lit globe of Jupiter, with the north pole approximately at the upper center of the image close to the terminator -- the dividing line between night and day. As the spacecraft gets closer to Jupiter, the horizon moves in and the range of visible latitudes shrinks.
The second and third images in this sequence show the north polar region rotating away from the spacecraft's field of view while the first of Jupiter's lighter-colored bands comes into view.
The fourth through the eighth images display a blue-colored vortex in the mid-southern latitudes near Points of Interest "Collision of Colours," "Sharp Edge," "Caltech, by Halka," and "Structure01."
The Points of Interest are locations in Jupiter's atmosphere that were identified and named by members of the general public. Additionally, a darker, dynamic band can be seen just south of the vortex.
In the ninth and tenth images, the south polar region rotates into view.
The final image on the left displays Jupiter's south pole in the center.
From the start of this sequence of images to the end, roughly 1 hour and 35 minutes elapsed.1 -
NASA Galaxy Evolution Explorer and Spitzer Space Telescope combined to show a pair of interacting galaxies might be experiencing the galactic equivalent of a mid-life crisis.
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Expedition 31 star trail composite
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OSIRIS-REx Views the Earth During Flyby
A color composite image of Earth was taken on Sept. 22, 2017, by the MapCam camera on NASA’s OSIRIS-REx spacecraft.
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This Week in NASA History: Second Crewed Skylab Mission Splashes Down – Sept. 25, 1973
This week in 1973, the second crewed Skylab mission splashed down in the Pacific Ocean following a successful 59-day mission in the orbiting laboratory.1
https://www.youtube.com/watch?v=BIASPc89Sgk
https://www.youtube.com/watch?v=pPnZQIkSNmU
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