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MeeseeksAndDestroy wrote: »empresssue wrote: »MeeseeksAndDestroy wrote: »empresssue wrote: »
From New York City, Saturn will be low on the eastern horizon from 5:27 to 5:42 p.m. EDT on July 19, 2013. Saturn’s approximate location is shown, but it will not be not visible in the daylight. Image via NASA.
It is a selfie of North America!
http://earthsky.org/space/ha-ha-join-the-first-interplanetary-photobomb-on-july-19
That's really cool. Too bad everyone in North America didn't know so we could have waved during the selfie.
NASA did tell people ahead of time but for what it's worth I didn't know at the time
I don't remember hearing it. Bummer.
It was a Friday and I would've been on my way home from work at that time so there's a good chance I was flipping the bird
I was thinking that would have been equally cool
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The Penguin and the Egg
This image of distant interacting galaxies, known collectively as Arp 142, bears an uncanny resemblance to a penguin guarding an egg.2 -
This image captures the swirling cloud formations around the south pole of Jupiter, looking up toward the equatorial region. NASA's Juno spacecraft took the color-enhanced image during its eleventh close flyby of the gas giant planet on Feb. 7 at 7:11 a.m. PST (10:11 a.m. EST). At the time, the spacecraft was 74,896 miles (120,533 kilometers) from the tops of Jupiter's clouds at 84.9 degrees south latitude. Citizen scientist Gerald Gerald Eichstädt processed this image using data from the JunoCam imager.
This image was created by reprocessing raw JunoCam data using trajectory and pointing data from the spacecraft. This image is one in a series of images taken in an experiment to capture the best results for illuminated parts of Jupiter's polar region. To make features more visible in Jupiter's terminator -- the region where day meets night -- the Juno team adjusted JunoCam so that it would perform like a portrait photographer taking multiple photos at different exposures, hoping to capture one image with the intended light balance.
For JunoCam to collect enough light to reveal features in Jupiter's dark twilight zone, the much brighter illuminated day-side of Jupiter becomes overexposed with the higher exposure.
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A relatively small active region erupted twice in 18 hours (Mar. 2, 2018). After each burst, one can see the magnetic fields lines, which appear as bright coils, spiraling around the region. They are reorganizing the disrupted magnetic field. The quick second when the screen goes black was caused by the Earth passing between the spacecraft and the sun. Images were taken in a wavelength of extreme ultraviolet light.2 -
The Case of the Martian Boulder Piles
This image from NASA's Mars Reconnaissance Orbiter (MRO) was originally meant to track the movement of sand dunes near the North Pole of Mars, but what's on the ground in between the dunes is just as interesting! The ground has parallel dark and light stripes from upper left to lower right in this area. In the dark stripes, we see piles of boulders at regular intervals.
What organized these boulders into neatly-spaced piles? In the Arctic back on Earth, rocks can be organized by a process called "frost heave." With frost heave, repeatedly freezing and thawing of the ground can bring rocks to the surface and organize them into piles, stripes, or even circles. On Earth, one of these temperature cycles takes a year, but on Mars it might be connected to changes in the planet's orbit around the Sun that take much longer.1 -
Cyclones Encircle Jupiter's North Pole
In this composite image, derived from data collected by the Jovian Infrared Auroral Mapper (JIRAM) instrument aboard NASA's Juno mission to Jupiter, shows the central cyclone at the planet's north pole and the eight cyclones that encircle it.
JIRAM collects data in infrared, and the colors in this composite represent radiant heat: the yellow (thinner) clouds are about 9 degrees Fahrenheit (-13°Celsius) in brightness temperature and the dark red (thickest) are around -181 degrees Fahrenheit (83°Celsius).
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Clearest and newest picture of Pluto
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(March 5, 2018) - Baja California and the northwestern coast of Mexico are pictured with Russian spacecraft solar arrays in the foreground. The International Space Station was orbiting above the Mexican state of Sinaloa at the time this photograph was taken.
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If you want to listen to Voyager 1's Golden Record NASA uploaded it to SoundCloud.
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Investigating Mars: Olympia Undae
This VIS image of Olympia Undae was collected during north polar spring. The crests of the dunes and other surfaces are light colored, indicative of a frost covering. At the top right of the image is a region of smooth surfaces. This is the ejecta from Jojutla Crater. The ejecta is a higher elevation than the rest of the surface, and dunes are "climbing" or "skirting" the ejecta regions. The density of dunes and the alignments of the dune crests varies with location, controlled by the amount of available sand and the predominant winds over time, and, in this case, the presence of different surface elevations.
As the season changes into summertime, the dune crests will lose the frost and reveal the darker sand beneath. This loss of frost is just starting to be visible at the bottom of the image. Olympia Undae is a vast dune field in the north polar region of Mars. It consists of a broad sand sea or erg that partly rings the north polar cap from about 120° to 240°E longitude and 78° to 83°N latitude. The dune field covers an area of approximately 470,000 km2 (bigger than California, smaller than Texas). Olympia Undae is the largest continuous dune field on Mars.
Olympia Undae is not the only dune field near the north polar cap, several other smaller fields exist in the same latitude, but in other ranges of longitude, e.g. Abolos and Siton Undae. Barchan and transverse dune forms are the most common. In regions with limited available sand individual barchan dunes will form, the surface beneath and between the dunes is visible. In regions with large sand supplies, the sand sheet covers the underlying surface, and dune forms are found modifying the surface of the sand sheet. In this case transverse dunes are more common. Barchan dunes "point" down wind, transverse dunes are more linear and form parallel to the wind direction. The "square" shaped transverse dunes in Olympia Undae are due to two prevailing wind directions.0 -
This image captures the swirling cloud formations around the south pole of Jupiter, looking up toward the equatorial region. NASA's Juno spacecraft took the color-enhanced image during its eleventh close flyby of the gas giant planet on Feb. 7 at 7:11 a.m. PST (10:11 a.m. EST). At the time, the spacecraft was 74,896 miles (120,533 kilometers) from the tops of Jupiter's clouds at 84.9 degrees south latitude. Citizen scientist Gerald Gerald Eichstädt processed this image using data from the JunoCam imager.
This image was created by reprocessing raw JunoCam data using trajectory and pointing data from the spacecraft. This image is one in a series of images taken in an experiment to capture the best results for illuminated parts of Jupiter's polar region. To make features more visible in Jupiter's terminator -- the region where day meets night -- the Juno team adjusted JunoCam so that it would perform like a portrait photographer taking multiple photos at different exposures, hoping to capture one image with the intended light balance.
For JunoCam to collect enough light to reveal features in Jupiter's dark twilight zone, the much brighter illuminated day-side of Jupiter becomes overexposed with the higher exposure.
Stunning.0 -
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Closeup photograph of Falcon 9's Merlin 1D engines during its 50th flight last week.
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MeeseeksAndDestroy wrote: »
The first stage, meanwhile, fell back into the atmosphere but no attempt was made to recover the rocket.
That's because SpaceX's booster recovery ship remained in Port Canaveral due to rough seas, with waves topping 24 feet in the landing zone. While the first stage carried out a series of re-entry rocket firings just as it would for a droneship landing, the booster was not expected to survive impact in the ocean.
But getting the Hispasat 30W-6 satellite to orbit was the primary goal of the flight and the second stage did just that, reaching a preliminary parking orbit about eight minutes and 40 seconds after launch.
https://www.cbsnews.com/news/spacex-falcon-9-boosts-spanish-comsat-into-space/
Also for much more detailed information:
SpaceX conducts 50th Falcon 9 launch with heavy Hispasat deployment
https://www.nasaspaceflight.com/2018/03/spacex-50-falcon-9-heavy-hispasat-launch/1 -
Cassini captured this striking view of Saturn’s moon Dione on July 23, 2012.
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