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How do eclipses work? Solar eclipses occur when the new moon passes between Earth and the sun and the moon casts a traveling shadow on Earth.
A total solar eclipse occurs when the new moon is in the right position to exactly cover the sun's disk. This will happen next month when the new moon will completely block our view of the sun along a narrow path from Oregon to South Carolina.
During August's total solar eclipse, it may be dark enough to see some of the brighter stars and a few planets!
Two weeks before or after a solar eclipse there's often, but not always, a lunar eclipse. But it's not necessarily a total lunar eclipse. This will happen because the moon will be at opposition. The full moon and Earth and the sun will be lined up with Earth in the middle.
Credit: NASA
#nasa #space #solarsystem #astronomy #eclipse #solareclipse #eclipse2017 #earth #moon #sun #shadow

On this day in 1969, NASA astronauts Neil Armstrong and Buzz Aldrin took “one small step” and planted the first human feet on another world, our moon. At 10:56 p.m. EDT, with more than half a billion people watching on television, Armstrong climbs down the ladder and proclaims: “That’s one small step for a man, one giant leap for mankind.” Aldrin joins him shortly, and offers a simple but powerful description of the lunar surface: “magnificent desolation.” They leave behind an American flag, a patch honoring the fallen Apollo 1 crew and a plaque on one of Eagle’s legs. It reads, “Here men from the planet Earth first set foot upon the moon. July 1969 A.D. We came in peace for all mankind.” Armstrong and Aldrin blast off and dock with Michael Collins in the Columbia Command Module.
Credit: NASA
#nasa #space #moon #Apollo11 #Apollo #landing #moonlanding #astronaut #armstrong #aldrin #collins #eagle #module #lunar #spacepic #instagram#otd

Freaky fast and really awesome! NASA astronaut Jack Fischer posted this GIF to his social media Tuesday saying, “I was checking the view out the back window & decided to take a pic so you can see proof of our ludicrous speed! #SpaceIsAwesome”. In case you didn’t know, the International Space Station travels 17,500 miles per hour as it orbits 250 miles above the Earth.
Currently, three humans are living and working there, conducting important science and research. The orbiting laboratory is home to more than 250 experiments, including some that are helping us determine the effects of microgravity on the human body. Research on the station will not only help us send humans deeper into space than ever before, including to destinations like Mars, but also benefits life here on Earth.
Credit: NASA
#nasa #space #gif #spacestation #astro2fish #astronaut #speed #fast #auroa #atmosphere #stars #solarsystem #orbit #instagram #picoftheday

What appears to be a floating orb in the blackness of space is actually Saturn’s icy moon Enceladus. Here, intriguing south-polar jets are visible, backlit by sunlight while the moon itself glows softly in reflected Saturn-shine.
Observations of the jets taken from various viewing geometries provide different insights into these remarkable features. Our Cassini spacecraft has gathered a wealth of information in the hopes of unraveling the mysteries of the subsurface ocean that lurks beneath the moon’s icy crust.
This view looks toward the Saturn-facing hemisphere of Enceladus, where north is up. The image was taken in visible light with the Cassini spacecraft’s narrow-angle camera on April 13.
Credit: NASA/JPL-Caltech/Space Science Institute
#nasa #space #moon #saturn #cassini #spacecraft #enceladus #jets #ice #icy #science #observe #picoftheday #instagrampic #spacepic

SCIENCCEEE!!! Did you know that at any given time, there are around 250 active experiments on the International Space Station? In this image, you see NASA astronaut Peggy Whitson as she stores blood samples in the station’s ULTRA-COLD freezer to maintain sample integrity. ⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Blood and urine samples help researchers on the ground investigate the effects of microgravity on the human body. Studying samples like this will help us test the effectiveness of possible countermeasures that could help reduce the risks associated with long-duration space missions. ⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Want to learn more about all the science done on the orbiting laboratory? We’re participating in the International Space Station Research and Development Conference (ISS R&D) in Washington, DC this week! The conference highlights the benefits and opportunities to conduct science in microgravity. Visit nasa.gov/live to watch live panels throughout the week and check out today’s Instagram Story to meet some of our female science experts at the conference! ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Credit: NASA ⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀
#nasa #space #research #science #technology #experiment #investigate #spacestation #microgravity #issrdc #samples #freezer #astronaut #picoftheday #sciencepic #instagram

Wispy arms swirling out from a bright, elongated core distinguish a particular kind of spiral galaxy known as a barred spiral, seen here in this Hubble Space Telescope image. Residing about 30 million light-years away in the northern constellation of Lynx, this galaxy was first discovered by British astronomer William Herschel over 200 years ago.
Barred spirals are actually more common than was once thought. Around two-thirds of all spiral galaxies – including the Milky Way – exhibit these straight bars cutting through their centers. These cosmic structures act as glowing nurseries for newborn stars, and funnel material towards the active core of a galaxy.
This galaxy is still actively forming new stars, although this process appears to be occurring very unevenly. The upper half of the galaxy – where the spiral arms are slightly better defined – hosts many more star-forming regions than the lower half, as indicated by the bright, dotted islands of light.
Credit: ESA/Hubble/NASA
#nasa #space #hubble #spothubble #spacetelescope #telescope #galaxy #lynx #constellation #wispy #swirling #universe #astronomer #williamherschel #milkyway #instagram #spacepic #picoftheday

One hundred years ago today, on July 17, at the dawn of humanity’s foray into to powered flight, something happened that changed forever the way humans would take to the skies. And, then the way we explore space. And, then how we study our home planet. That something was the establishment of what is now our Langley Research Center in Hampton, Virginia. Air travel, spaceflight, robotic solar-system missions: science fiction to those alive at the turn of the 20th century became science fact to those living in the 21st. America’s aerospace future has been literally made at the Langley Research Center by the best and brightest the country has to offer.
Langley broke new ground in aeronautical research with a suite of first-of-their-kind wind tunnels that led to numerous advances in commercial, military and vertical flight, such as helicopters and other rotorcraft. Airflow turning vanes are shown here in Langley’s 16-Foot Transonic Tunnel.
Image Credit: NASA
#nasa #langley #aernautics #aerospace #solarsystem #windtunnel #langelyresearchcentercentennial #spaceflight #aerodynamics #space #NASALangley100 #NASALangley #research #history #anniversary #centennial #100years

No one knows the International Space Station better than the people who live and work there – and now they’re sharing that knowledge in bite-sized chunks. In the first of a series of short videos called “SpeedyTime,” NASA astronaut Jack Fischer gives us a quick-but-thorough tour of payload activities inside and outside the airlock in the station’s Japanese laboratory module, Kibo.
Join him for this quick tour on the orbiting laboratory!
Currently, three humans are living and working on the International Space Station, conducting important research and helping us advance technology.
Credit: NASA
#nasa #space #spacestation #astronaut #speedytime #speedy #tour #float #payload #science #research #work #orbit #astro2fish #kibo #module #airlock #video

Between July 5-11, our Sun-observing satellite, the Solar Dynamics Observatory, saw a sunspot rotate into view and captured it on this. Such sunspots are a common, but are less frequent as we head toward solar minimum, which is the period of low solar activity during its regular approximately 11-year cycle. This sunspot is the first to appear after the sun was spotless for two days, and it is the only sunspot group at this moment. Like freckles on the face of the sun, they appear to be small features, but size is relative: The dark core of this sunspot is actually larger than Earth.
Credits: NASA’s Goddard Space Flight Center/SDO/Joy Ng, producer
#nasa #sun #sunspot #solarsystem #heliophysics #sdo #solardynamicsobservatory #astronomy #earth

It has been two years since our New Horizons spacecraft completed the historic #PlutoFlyby. Billions of miles from Earth (yes…billions!), the spacecraft is now on its way deeper into the Kuiper Belt – a disc-shaped region of icy bodies and comets beyond the orbit of Neptune.
In July 2015, the New Horizons spacecraft sent home the first close-up pictures of Pluto and its moons – amazing imagery that inspired many to wonder what a flight over the distant worlds’ icy terrain might be like. Wonder no more! Using actual spacecraft data and digital elevation models of Pluto and its largest moon Charon, mission scientits have created flyover movies that offer new perspectives of the many unusual features that were discovered and which have reshaped our views of the Pluto system – from a vantage point even closer than the spacecraft itself!
Take a ride with us over these celestial bodies…
Credit: NASA/JHUAPL/SwRI/Paul Schenk and John Blackwell, Lunar Planetary Institute
#nasa #space #pluto #plutoflyby #newhorizons #charon #moon #dwarfplanet #solarsystem #kuiperbelt #anniversary #twoyears #flyover #data #spacecraft #movie

In the context of space, the term ‘cloud’ can mean something rather different from the fluffy white collections of water in the sky or a way to store data or process information. Giant molecular clouds are vast cosmic objects, composed primarily of hydrogen molecules and helium atoms, where new stars and planets are born. These clouds can contain more mass than a million suns, and stretch across hundreds of light years!

The giant molecular cloud shown here is one of the closest to Earth at a distance of about 17,000 light years. Because of its relative proximity, this cloud provides astronomers with an excellent opportunity to study how stars are forming in our Milky Way galaxy.

This composite image shows the high-energy output from this stellar nursery, where X-rays from our Chandra observatory are colored blue. In about 20 hours of Chandra exposure time, over 600 young stars were detected as point-like X-ray sources, and diffuse X-ray emission from interstellar gas with a temperature of a million degrees or more was also observed. Infrared light observed with our Spitzer Space Telescope appears orange and yellow-green and shows cool gas and stars surrounded by disks of cool material.

Credit: X-ray: NASA/CXC/PSU/L. Townsley et al; Infrared: NASA/JPL-Caltech

#nasa #space #chandra #spitzer #spacetelescope #telescope #cloud #stars #form #born #molecular #cosmic #sun #lightyears #xray #infrared #picoftheday #spacepic

Seeing spots! These new, close-up images of Jupiter’s Great Red Spot reveal a tangle of dark, veinous clouds weaving their way through a massive crimson oval. The JunoCam image aboard our Juno spacecraft snapped pictures of the most iconic feature of the solar system’s largest planetary inhabitant during its Monday (July 10) flyby.

For hundreds of years, scientists have been observing, wondering and theorizing about Jupiter’s Great Red Spot. Now we have the best pictures ever of this iconic storm. It will take us some time to analyze all the data from not only JunoCam, but Juno’s eight science instruments, to shed some new light on the past, present and future of the Great Red Spot.

As planned, citizen scientists took the raw images of the flyby from the JunoCam site and processed them, providng a higher level of detail than available in their raw form. During its mission of exploration, Juno soars low over the planet’s cloud tops to probe beneath the obscuring cloud cover of Jupiter and study its auroras to learn more about the planet’s origins, structure, atmosphere and magnetosphere.

Credit (Image 1): NASA/JPL-Caltech/SwRI/MSSS/Jason Major
Credit (Image 2): NASA/JPL-Caltech/SwRI/MSSS/Kevin Gill
Credit (Image 3): NASA/JPL-Caltech/SwRI/MSSS/Gerald Eichstädt

#nasa #space #juno #junocam #jupiter #greatredspot #grs #spacecraft #solarsystem #planet #planetary #spacepic #picoftheday

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