NASA 2017-05-18 22:29:59


Shrouded in clouds today in 1969, this image was taken by the crew of Apollo 10 as they began their lunar journey. From 36,000 nautical miles away, this full disk view of our home planet shows the crew’s vantage point from space.

The crew members on Apollo 10 were astronauts Thomas P. Stafford, commander; John W. Young, command module pilot; and Eugene E. Cernan, lunar module pilot. Astronaut Young remained in lunar orbit, in the Command and Service Module (CSM) “Charlie Brown”, while astronauts Stafford and Cernan descended to within nine miles of the lunar surface, in the Lunar Module (LM) “Snoopy”. Credit: NASA

#nasa #space #moon #earth #home #homeplanet #astronauts #apollo #apollo10 #tbt #throwbackthursday #Thursday #picoftheday #spacecraft #spacepic #otd #history #nasahistory #spacehistory

NASA 2017-05-17 00:53:15


Saturn’s shadow on the rings grows shorter as the northern hemisphere advances toward summer, thanks to the planet’s permanent tilt as it orbits the sun. This will continue until the solstice later this month. Then, the shadow will extend only as far as the innermost A ring.
The image was taken in visible light with the Cassini spacecraft wide-angle camera on Feb. 3, 2017. The view was acquired at a distance of approximately 760,000 miles (1.2 million kilometers) from Saturn.
Credit: NASA/JPL-Caltech/Space Science Institute
#cassini #saturn #solarsystem #nasa #space #planet #spacecraft #nofilter

NASA 2017-05-15 18:35:19


At the edge of the sun, a large prominence and a small prominence began to shift, turn and fall apart in less than one day on May 8-9, 2017. Prominences are notoriously unstable. Competing magnetic forces pulled the plasma back and forth until they dissipated. The images were taken in a wavelength of extreme ultraviolet light. The 18-second video clip is comprised of almost 600 frames being shown at 30 frames per second.
Credit: NASA
#nasa #space #solar #sun #sdo #solarobservatory #spacecraft #magneticfield #particles #energy

NASA 2017-05-14 17:13:17


Although appearing as one object, this image shows two galaxies rushing past each other at about 1,243,000 miles per hour! This speed is most likely too fast for them to merge and form a single galaxy. However, because of their small separation of only about 20,000 light-years, the galaxies will distort one another through the force of gravity while passing each other, changing their structures on a grand scale.

Such galactic interactions are a common sight for Hubble, and have long been a field of study for astronomers. The intriguing behaviors of interacting galaxies take many forms; galactic cannibalism, galaxy harassment and even galaxy collisions. The Milky Way itself will eventually fall victim to the latter, merging with the Andromeda Galaxy in about 4.5 billion years. The fate of our galaxy shouldn’t be alarming though: while galaxies are populated by billions of stars, the distances between individual stars are so large that hardly any stellar collisions will occur.

Credit: ESA/NASA

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NASA 2017-05-13 19:49:05


Astronaut Jack Fischer shared this picture of astronaut Peggy Whitson working during yesterday’s spacewalk, saying “A spacewalk is like taking off the blinders to the enormous beauty of our world.” Friday’s 200th spacewalk in support of the International Space Station (@iss) officially lasted 4 hours and 13 minutes. During their time working outside station, astronauts Peggy Whitson and Jack Fischer were able to install a new avionics box that will supply electricity and data connections to science experiments. They also completed additional tasks to install a connector that will route data to the Alpha Magnetic Spectrometer, which detects and studies cosmic rays, as well as installed a protective shield on an external part of the station.

Credits: NASA
#nasa #space #astronaut #spacewalk #spacesuit #international #spacestation #nofilter #picoftheday #instadaily

NASA 2017-05-11 22:15:44


Spotted: NASA astronaut Jack Fischer floating inside the space station wearing his spacesuit ahead of tomorrow’s spacewalk. Tomorrow, is Fischer’s first-ever spacewalk and the 200th on the International Space Station. He’ll be joined in the vacuum of space by fellow astronaut Peggy Whitson. For her, this is spacewalk number nine.
Once both astronauts venture outside, their tasks will focus on replacing a large avionic box that supplies electricity and data connections to the science experiments and rigging a new high-definition camera to the outside of station.
Watch live coverage of tomorrow’s spacewalk on our website or the International Space Station Facebook page!
Credits: ESA/NASA
#nasa #space #astronaut #spacewalk #spacesuit #international #spacestation #nofilter #picoftheday #instadaily

NASA 2017-05-10 18:17:03


Crab Nebula in technicolor! This new composite view combines data from five different telescopes, showing the celestial object in multiple kinds of light.

Swipe to explore the wavelengths! The view starts with a composite image of the Crab Nebula, a supernova remnant that was assembled by combining data from five telescopes spanning nearly the entire breadth of the electromagnetic spectrum: the Very Large Array, the Spitzer Space Telescope, the Hubble Space Telescope, the XMM-Newton Observatory, and the Chandra X-ray Observatory.
It then moves to the red-colored radio-light view that shows how a neutron star’s fierce “wind” of charged particles from the central neutron star energized the nebula, causing it to emit the radio waves.
The yellow-colored infrared image includes the glow of dust particles absorbing ultraviolet and visible light.
The green-colored Hubble visible-light image offers a very sharp view of hot filamentary structures that permeate this nebula.
The blue-colored ultraviolet image and the purple-colored X-ray image shows the effect of an energetic cloud of electrons driven by a rapidly rotating neutron star at the center of the nebula.

Credits: NASA/ESA/NRAO/AUI/NSF

#nasa #space #hubble #spitzer #chandra #crabnebula #solarsystem #universe #astrophysics #nebulae #wavelengths #light

NASA 2017-05-08 21:20:13


Saturn’s hexagonal polar jet stream shines with the glow of reflected sunlight in this image taken by our Cassini spacecraft. The sunlight falling on Saturn’s north pole, which is just enough to allow us to image and study the region, does not provide much warmth. In addition to being low in the sky (just like summer at Earth’s poles), the sun is nearly ten times as distant from Saturn as from Earth and is only about 1 percent as intense as on Earth.
Credit: NASA/JPL-Caltech/Space Science Institute
#cassini #saturn #sun #solarsystem #nasa #space #planet #spacecraft

NASA 2017-05-07 15:16:53


A giant wave of hot gas, spanning some 200,000 light-years, has been found in the nearby Perseus galaxy cluster by our Chandra X-ray Observatory. The wave is about twice the size of our own Milky Way galaxy and thought to have formed billions of years ago. Observations from Chandra, coupled with a computer simulation, shows the gravitational disturbance resulting from the distant flyby of a galaxy cluster about a tenth the mass of the Perseus cluster. The event causes cooler gas at the heart of the Perseus cluster to form a vast expanding spiral, which ultimately forms giant waves lasting hundreds of millions of years at its periphery. Merger events like this are thought to occur as often as every three to four billion years in clusters like Perseus.

Credit: NASA’s Goddard Space Flight Center

Music: “The Undiscovered” from Killer Tracks

#nasa #space #gravity #light #waves #perseus #galaxy #univers #solarsystem #cluster #spiral #merger #lightyear

NASA 2017-05-05 16:15:52


The Hubble Space Telescope has some amazing superpowers, specifically when it comes to observing innumerable galaxies flung across time and space. A stunning example is a galaxy cluster called Abell 370. Located approximately 4 billion light-years away, this galaxy cluster contains an assortment of several hundred galaxies tied together by the mutual pull of gravity.
Photographed in a combination of visible and near-infrared light, the brightest and largest galaxies are the yellow-white, massive, elliptical galaxies containing many hundreds of billions of stars EACH! Spiral galaxies have younger populations of stars and are bluish. Mysterious-looking arcs of blue light are distorted images of remote galaxies behind the cluster. The cluster acts as a huge lens in space that magnifies and stretches images of background galaxies like a funhouse mirror.
Credits: NASA/ESA/STScI
#nasa #space #hubble #stars #galaxy #galaxies #cluster #galaxycluster #spothubble #esa #spacetelescope #telescope #gravity #lightyear #nasahubble #light #universe #solarsystem