nature | Night Life | by Joshwallace | http://ift.tt/1IeKeUi
A photo of Saturn. Took by Cassini with COISS on May 22, 2008 at 13:31:01. Detail page on OPUS database.
New Horizons: Enhanced false-color mosaic of Pluto, July 14th 2015
New Horizons scientists use enhanced color images to detect differences in the composition and texture of Pluto’s surface. When close-up images are combined with color data from the Ralph instrument, it paints a new and surprising portrait of the dwarf planet. The “heart of the heart,” Sputnik Planum, is suggestive of a source region of ices. The two bluish-white “lobes” that extend to the southwest and northeast of the “heart” may represent exotic ices being transported away from Sputnik Planum. Four images from New Horizons’ Long Range Reconnaissance Imager (LORRI) were combined with color data from the Ralph instrument to create this enhanced color global view. The images, taken when the spacecraft was 280,000 miles (450,000 kilometers) away, show features as small as 1.4 miles (2.2 kilometers).
Image Credit: NASA/JHUAPL/SwRI
Fig. 36. The Celestial Sphere. Geodesy, including astronomical observations, gravity measurements, and method of least squares. 1919.
Add a bit of space in everyday life by using the interior, which will carry you into the space of distant planets, galaxies, asteroids and constellations. Read also: 22 Simple Ideas to Make Your Home Cozier and 12 Simple Ideas How to Make Your Home Cozier Artnaz.com gathered for you in this post… — http://artnaz.com/space-things/
The moon occluding the sun during an eclipse. The fine threads you can see are part of the solar corona, and actually titanic spools of ultra-hot plasma, curling and bending with the sun’s complex magnetic field.
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This Monday, Aug. 17, marks the final targeted flyby of Dione, one of Saturn’s many moons, in Cassini’s long mission. During this flyby, the science team will conduct a gravity experiment that will contribute to our knowledge of the internal structure of Dione. We will also learn more about its outer ice shell, and will be able to compare this with Saturn’s other icy moons.
Beyond the icy moons, Saturn is adorned with thousands of beautiful ringlets, While all four gas giant planets in our solar system have rings – made of chunks of ice and rock – none are as spectacular or as complicated as Saturn’s. Like the other gas giants, Saturn is mostly a massive ball of hydrogen and helium.
This image of Saturn was taken using an infrared filter. Using this type of filter can help scientists determine the location of clouds in the planet’s atmosphere. The darker areas reveal clouds that are lower in the atmosphere, while the bright areas are higher altitude clouds.
Since Cassini reached Saturn in 2004, it has captured important data and images. This spacecraft has the ability to “see” in wavelengths that the human eye cannot, and it can “feel” things about magnetic fields and tiny dust particles that no human hand could detect. These heightened “senses” have allowed us to have a better understanding of Saturn, its moons and the solar system.
Learn more about Cassini & Saturn: http://saturn.jpl.nasa.gov/
Stargazing and looking up into the night sky is always a fun thing to do. This month, it will be especially exciting because there will be a total eclipse of a supermoon, plus the opportunity to see planets and the late-summer Milky Way!
What is a supermoon?
A supermoon is a new or full moon that occurs when it is at, or near its closest approach to Earth in a given orbit. There are usually 4 to 6 supermoons every year.
Observers can view the total eclipse on September 27, starting at 10:11 p.m. EDT until 11:23 p.m. This event will be visible in North and South America, as well as Europe and Africa. So make sure to mark your calendars!
This month, you will also be able to see the planets! Look for Mercury, Saturn, Pluto and Neptune in the evening sky. Uranus and Neptune at midnight, and Venus, Mars and Jupiter in the pre-dawn sky.
Finally, if you’re able to escape to a dark location, you might be able to see a great view of our Milky Way!
So, make sure to get outside this month and take a look at everything our night sky has to offer.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Floating around in zero gravity may sound like a blast, but it can actually present a lot of challenges to things we do everyday here on Earth with little to no thought. Here are a few ways that astronauts on the International Space Station complete normal tasks in orbit:
1) Washing Hair
You can’t just have a shower on the space station because the water would come out of the faucet and float all over the place. In this video, NASA Astronaut Karen Nyberg demonstrates how she uses a bag of water, no rinse shampoo, a towel and her comb to wash her hair.
2) Drinking Coffee
Believe it or not, there are special cups used on the space station to drink coffee from the new ISSpresso machine. I mean, you wouldn’t want hot coffee floating around in the air…would you? Previously, astronauts drank coffee from plastic bags, but let’s face it, that sounds pretty unenjoyable. Now, there are zero Gravity coffee cups, and an Italian espresso machine aboard the International Space Station! These cups were created with the help of capillary flow experiments conducted in space.
3) Sleeping
There’s nothing like crawling into bed after a long day, but astronauts can’t exactly do that while they’re in microgravity. Instead of beds, crew members use sleeping bags attached to the walls of their small crew cabins. They are able to zipper themselves in so that they don’t float around while they’re asleep. This may sound uncomfortable, but some astronauts, like Scott Kelly, say that they sleep better in space than they do on Earth!
4) Exercising
Exercising in general is an important part of a daily routine. In space, it even helps prevent the effects of bone and muscle loss associated with microgravity. Typically, astronauts exercise two hours per day, but the equipment they use is different than here on Earth. For example, if an astronaut wants to run on the treadmill, they have to wear a harness and bungee cords so that they don’t float away.
Today, we tested the RS-25 engine at Stennis Space Center in Mississippi, and boy was it hot! Besides the fact that it was a hot day, the 6,000 degree operating temperature of the hot fire test didn’t help things. This engine is one of four that will power the core stage of our Space Launch System (SLS) into deep space and to Mars. Today’s test reached 109% power and burned 150,000 gallons of liquid oxygen and 60,000 gallons of liquid hydrogen. When SLS launches with all 4 of its engines, it will be the most powerful rocket in the world!
This engine was previously used to to fly dozens of successful missions on the space shuttle, so you might be asking, “Why are we spending time testing it again if we already know it’s awesome?” Well, it’s actually really important that we test them specifically for use with SLS for a number of reasons, including the fact that we will be operating at 109% power, vs. the 104% power previously used.
If you missed the 535-second, ground rumbling test today – you’re in luck. We’ve compiled all the cool stuff (fire, steam & loud noises) into a recap video. Check it out here:
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I love space. I've been to space camp in Huntsville Alabama and I am planning on going every summer. I look forward to be an astronaut for nasa on the sls that is planned to be launched 2018. And the manned mission 2030. So yeah I won't let anything get in my way.
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