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Mars has bright polar caps of ice that are easily visible from telescopes on Earth. A seasonal cover of carbon-dioxide ice and snow is observed to advance and retreat over the poles during the Martian year. Scientists using radar data have found a record of the most recent Martian ice age recorded in the north polar ice cap. via NASA ift.tt/1sdb3bv
Funny the vast fortune paid by us, NASA conveniently cuts live feeds at the right time that puts them in the position of explaining something that might be hard to explain.
Better pulling the plug that ruins an otherwise boring image when something cruises past a camera that's not part of NASA'S program.
I thought NASA was about learning and exploring , at best we get panic mode sudden camera failure. I just find it funny.
What's that in the sky? Although there was much to see in this spectacular panorama taken during the early morning hours of a day in late September, the brightest object in the sky was clearly the planet Venus. In the featured image, Venus was captured actually through a natural rock bridge, itself picturesque, in Spitzkoppe, Namibia. The planet, on the left of the opening, was complemented by a silhouette of the astrophotographer on the right. Above and beyond the rock bridge were many famous icons of a dark night sky, including, from left to right, the Pleiades star cluster, the Orion Nebula, the bright star Sirius, and the Large and Small Magellanic Clouds. This week, Venus remains visible to the east in the pre-dawn sky, being complemented by Mars, which is angularly quite close. via NASA ift.tt/1MvlQQN
The 2017 NASA astronaut candidates class (Group 22) visited NASA's Goddard Space Flight Center in Greenbelt, Maryland, on Sept. 26, 2018.
These individuals were selected by NASA as candidates for the NASA astronaut corps and are currently undergoing a candidacy training program at the agency’s Johnson Space Center in Houston. The newest class of 2017 astronaut candidates was announced June 7, 2017.
NASA's 2017 Astronaut Candidate Class includes: Zena Cardman, U.S. Marine Corps Maj. Jasmin Moghbeli, U.S. Navy Lt. Jonny Kim, U.S. Army Maj. Francisco “Frank” Rubio, U.S. Navy Lt. Cmdr. Matthew Dominick, Warren “Woody” Hoburg, Robb Kulin, U.S. Navy Lt. Kayla Barron, Bob Hines, U.S. Air Force Lt. Col. Raja Chari, Loral O’Hara, and Jessica Watkins.
Credit: NASA/Goddard/Debbie McCallum
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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CME blast and subsequent impact at Earth -- This illustration shows a CME blasting off the Sun’s surface in the direction of Ea CME blast and subsequent impact at Earth -- This illustration shows a CME blasting off the Sun’s surface in the direction of Earth. This left portion is composed of an EIT 304 image superimposed on a LASCO C2 coronagraph. Two to four days later, the CME cloud is shown striking and beginning to be mostly deflected around the Earth’s magnetosphere. The blue paths emanating from the Earth’s poles represent some of its magnetic field lines. The magnetic cloud of plasma can extend to 30 million miles wide by the time it reaches earth. These storms, which occur frequently, can disrupt communications and navigational equipment, damage satellites, and even cause blackouts. (Objects in the illustration are not drawn to scale.)
Credit: NASA/GSFC/SOHO/ESA
To learn more go to the SOHO website:
sohowww.nascom.nasa.gov/home.html
To learn more about NASA's Sun Earth Day go here:
What's that in the sky? Although there was much to see in this spectacular panorama taken during the early morning hours of a day in late September, the brightest object in the sky was clearly the planet Venus. In the featured image, Venus was captured actually through a natural rock bridge, itself picturesque, in Spitzkoppe, Namibia. The planet, on the left of the opening, was complemented by a silhouette of the astrophotographer on the right. Above and beyond the rock bridge were many famous icons of a dark night sky, including, from left to right, the Pleiades star cluster, the Orion Nebula, the bright star Sirius, and the Large and Small Magellanic Clouds. This week, Venus remains visible to the east in the pre-dawn sky, being complemented by Mars, which is angularly quite close. via NASA ift.tt/1MvlQQN
I put this video together in memory of my father. I remember watching the Apollo missions on our black and white tv as a child and was amazed by the thought of space travel and the idea on landing on the moon.
Early spring in the northern hemisphere is good season for aurora hunters. Near an equinox Earth's magnetic field is oriented to favor interactions with the solar wind that trigger the alluring glow of the northern lights. On March 28/29 the skies over Kaunispää Hill, Lapland, Finland did not disappoint. That night's expansive auroral curtains are captured in this striking panoramic view that covers a full 360 degrees. Local skywatchers were mesmerized by bright displays lasted throughout the dark hours, shimmering with colors easily visible to the naked eye. via NASA ift.tt/1SjdtKS
Dwarf planet Ceres is the largest object in the Solar System's main asteroid belt with a diameter of about 950 kilometers. Exploring Ceres from orbit since March, the Dawn spacecraft's camera has revealed about 130 or so mysterious bright spots, mostly associated with impact craters scattered around the small world's otherwise dark surface. The brightest one is near the center of the 90 kilometer wide Occator Crater, seen in this dramatic false color view combining near-infrared and visible light image data. A study now finds the bright spot's reflected light properties are probably most consistent with a type of magnesium sulfate called hexahydrite. Of course, magnesium sulfate is also known to Earth dwellers as epsom salt. Haze reported inside Occator also suggests the salty material could be left over as a mix of salt and water-ice sublimates on the surface. Since impacts would have exposed the material, Ceres' numerous and widely scattered bright spots may indicate the presence of a subsurface shell of ice-salt mix. In mid-December, Dawn will begin taking observations from its closest Ceres mapping orbit. via NASA ift.tt/1Y1YXjt
NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop the mobile launcher as it rolls out to Launch Pad 39B, Wednesday, Aug. 17, 2022, at NASA’s Kennedy Space Center in Florida. NASA’s Artemis I flight test is the first integrated test of the agency’s deep space exploration systems: the Orion spacecraft, SLS rocket, and supporting ground systems. Launch of the uncrewed flight test is targeted for no earlier than Aug. 29. Photo Credit: (NASA/Joel Kowsky)
Sculpted by stellar winds and radiation, the star factory known as Messier 17 lies some 5,500 light-years away in the nebula-rich constellation Sagittarius. At that distance, this 1/3 degree wide field of view spans over 30 light-years. The sharp composite, color image, highlights faint details of the region's gas and dust clouds against a backdrop of central Milky Way stars. Stellar winds and energetic light from hot, massive stars formed from M17 stock of cosmic gas and dust have slowly carved away at the remaining interstellar material producing the cavernous appearance and undulating shapes. M17 is also known as the Omega Nebula or the Swan Nebula. via NASA ift.tt/1OKwXfd
"Frontier Fields" galaxy cluster MACS J0717, one of the most complex and distorted galaxy clusters known, is the site of a collision between four clusters. It is located about 5.4 billion light years away from Earth. via NASA ift.tt/1QPz8L0
A new map of Mars' gravity is the most detailed to date, providing a revealing glimpse into the planet's hidden interior. The map was derived using Doppler and range tracking data collected by NASA's Deep Space Network from three NASA spacecraft in orbit around Mars: Mars Global Surveyor, Mars Odyssey, and the Mars Reconnaissance Orbiter. via NASA ift.tt/1S0UaX5
ESA astronaut Alexander Gerst reviews camera equipment during training at NASA’s Johnson Space Center in Houston, USA ahead of his launch to the International Space Station.
Alexander will be launched on 6 June with US astronaut Serena Auñón-Chancellor and Russian cosmonaut Sergei Prokopyev from the Baikonur cosmodrome, Kazakhstan in the Soyuz MS-09 spacecraft. Soyuz MS-09 will be the 138th flight of a Soyuz spacecraft.
The mission is called Horizons to evoke exploring our Universe, looking far beyond our planet and broadening our knowledge. His first mission was called Blue Dot. Alexander will take over command of the International Space Station for the second half of his mission. This is only the second time that a European astronaut will take up this leading position on the space outpost – the first was ESA astronaut Frank De Winne in 2009. Alexander Gerst is the 11th German citizen to fly into space.
The astronaut is now in the last stages of training for his challenging mission. The science programme is packed with European research: more than 50 experiments will deliver benefits to people back on Earth and prepare for future space exploration.
Credits: ESA - S. Corvaja
It's easy to get lost following the intricate strands of the Spaghetti Nebula. A supernova remnant cataloged as Simeis 147 and Sh2-240, the glowing gas filaments cover nearly 3 degrees -- 6 full moons -- on the sky. That's about 150 light-years at the stellar debris cloud's estimated distance of 3,000 light-years. This sharp composite includes image data taken through a narrow-band filter to highlight emission from hydrogen atoms tracing the shocked, glowing gas. The supernova remnant has an estimated age of about 40,000 years, meaning light from the massive stellar explosion first reached Earth about 40,000 years ago. But the expanding remnant is not the only aftermath. The cosmic catastrophe also left behind a spinning neutron star or pulsar, all that remains of the original star's core. via NASA ift.tt/1rcmIXv
The center of our Galaxy is a busy place. In visible light, much of the Galactic Center is obscured by opaque dust. In infrared light, however, dust glows more and obscures less, allowing nearly one million stars to be recorded in the featured photograph. The Galactic Center itself appears on the left and is located about 30,000 light years away towards the constellation of the Archer (Sagittarius). The Galactic Plane of our Milky Way Galaxy, the plane in which the Sun orbits, is identifiable by the dark diagonal dust lane. The absorbing dust grains are created in the atmospheres of cool red-giant stars and grow in molecular clouds. The region directly surrounding the Galactic Center glows brightly in radio and high-energy radiation, and is thought to house a large black hole. via NASA ift.tt/1JasUY4
This image of haze layers above Pluto’s limb was taken by the Ralph/Multispectral Visible Imaging Camera (MVIC) on NASA’s New Horizons spacecraft. About 20 haze layers are seen; the layers have been found to typically extend horizontally over hundreds of kilometers, but are not strictly parallel to the surface. via NASA ift.tt/1MpKPpM
For the first time in almost 40 years, a NASA human-rated rocket has completed all steps needed to clear a critical design review (CDR). The agency’s Space Launch System (SLS) is the first vehicle designed to meet the challenges of the journey to Mars and the first exploration class rocket since the Saturn V. via NASA ift.tt/1DOoofc
This 3 month long exposure packed the days from December 22, 2015 through March 20 into a box. Dubbed a solargraph, the unconventional, unfolded picture was recorded with a pinhole camera made from a cube-shaped container, its sides lined with photographic paper. Fixed to a single spot for the entire exposure, the simple camera recorded the Sun's path through Hungarian skies. Each day a glowing trail was burned into the photosensitive paper. From short and low, to long and high, the trails follow the progression from winter solstice to spring equinox. Of course, dark gaps in the daily sun trails are caused by cloud cover. Sunny days produce the more continuous bright tracks. via NASA ift.tt/1XUvcwF
Sculpted by stellar winds and radiation, the star factory known as Messier 17 lies some 5,500 light-years away in the nebula-rich constellation Sagittarius. At that distance, this 1/3 degree wide field of view spans over 30 light-years. The sharp composite, color image, highlights faint details of the region's gas and dust clouds against a backdrop of central Milky Way stars. Stellar winds and energetic light from hot, massive stars formed from M17 stock of cosmic gas and dust have slowly carved away at the remaining interstellar material producing the cavernous appearance and undulating shapes. M17 is also known as the Omega Nebula or the Swan Nebula. via NASA go.nasa.gov/1Mdizf1
NASA image acquired July 21, 2011
By 8:00 a.m. Pacific Daylight Time on July 21, 2011, Dora was nearly a Category 5 hurricane. The U.S. National Hurricane Center (NHC) reported that Dora had maximum sustained winds of 155 miles (250 kilometers) per hour with higher gusts. At that time, the NHC stated, Dora was located about 240 miles (390 kilometers) south-southwest of Cabo Corrientes.
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image around 1:00 p.m. PDT on July 21. Dora’s eye is southwest of Cabo Corrientes, and storm clouds graze the coast.
By 5:00 a.m. PDT on July 22, the NHC reported, Dora had weakened to a Category 1 hurricane. Located roughly 255 miles (415 kilometers) south of Cabo San Lucas, the storm had maximum sustained winds of 90 miles (150 kilometers) per hour. The storm was expected to continue weakening over the next 48 hours as it remained on a track roughly parallel to Mexico’s southwestern coast.
NASA image courtesy MODIS Rapid Response, NASA Goddard Space Flight Center. Caption by Michon Scott.
Instrument:
Aqua - MODIS
Credit: NASA Earth Observatory
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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United Launch Alliance (ULA) and NASA team members successfully retrieve the Low-Earth Orbit Flight Test of an Inflatable Decelerator (LOFTID) heat shield from the Pacific Ocean after launching on a ULA Atlas V rocket with NOAA's Joint Polar Satellite System (JPSS)-2. Photo credit: United Launch Alliance
United Launch Alliance (ULA) and NASA team members successfully retrieve the Low-Earth Orbit Flight Test of an Inflatable Decelerator (LOFTID) heat shield from the Pacific Ocean after launching on a ULA Atlas V rocket with NOAA's Joint Polar Satellite System (JPSS)-2. Photo credit: United Launch Alliance
A waning crescent moon, early morning twilight, and Al Hamra's city lights on the horizon can't hide the central Milky Way in this skyscape from planet Earth. Captured in a single exposure, the dreamlike scene looks southward across the region's grand canyon from Jabal Shams (Sun Mountain), near the highest peak in Oman, on the Arabian Peninsula. Mist, moonlight, and shadows still play along the steep canyon walls. Dark rifts along the luminous band of the Milky Way are the galaxy's cosmic dust clouds. Typically hundreds of light-years distant, they obscure starlight along the galactic plane, viewed edge-on from the Solar System's perspective. via NASA ift.tt/1SDb1W1
A magnetically active region along the Sun's northwestern region on February 11, 2011. SDO AIA 171 image, rotated 90º, cropped and adjusted to bring out detail.
Small circle at upper right is the size of Earth, to scale.
Image credit: SDO (NASA) and the AIA consortium.
(Edited by J. Major.)
On May 6, the after midnight launch of a SpaceX Falcon 9 rocket lit up dark skies over Merritt Island, planet Earth. Its second stage bound for Earth orbit, the rocket's arc seems to be on course for the center of the Milky Way in this pleasing composite image looking toward the southeast. Two consecutive exposures made with camera fixed to a tripod were combined to follow rocket and home galaxy. A 3 minute long exposure at low sensitivity allowed the rocket's first stage burn to trace the bright orange arc and a 30 second exposure at high sensitivity captured the stars and the faint Milky Way. Bright orange Mars dominates the starry sky at the upper right. A few minutes later, booster engines were restarted and the Falcon 9's first stage headed for a landing on the autonomous spaceport drone ship Of Course I Still Love You, patiently waiting in the Atlantic 400 miles east of the Cape Canaveral launch site. via NASA ift.tt/27mf1yT
#AlphaTrainingRecap 8/12: parlons sport. En impesanteur, les muscles et les os souffrent de ne plus travailler. Nous passons jusqu’à 2h30 chaque jour à faire de l'exercice. Voici ARED, un appareil d'exercice physique très complet. Il est un peu impressionnant mais ne vous inquiétez pas, je l'ai sous contrôle 😉 Je l’ai beaucoup utilisé durant Proxima et il n’a pas beaucoup changé. Comme on ne ressent pas les effets du poids, cette machine utilise des cylindres à vide pour créer une résistance. Grâce à elle, on peut entretenir sa masse musculaire dans l'espace et compenser tous ces mois à flotter. Course à pied, vélo ou autre, ça peut devenir un peu répétitif…
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#AlphaTrainingRecap 8/12: We spend a lot of time in space working out to stay fit. Here's some scenes training on ARED, or the Advanced Resistance Exercise Device. We need to keep our muscles strong in space to counteract the months of just floating. This device is a bit of a beast and it looks like it is winning in some of these photos. Don't worry I have it under control ;) Not much has changed since mission Proxima, the device is so advanced that it requires a computer to use, but so reliable it just works. We don't have weights in space so it uses vacuum cylinders to resist the 💪. As we run, cycle or work out up to two and a half hours a day on the International Space Station it can get a bit repetitive sometimes.
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PHOTO DATE: 12-03-20
LOCATION: Bldg. 26, Room 104
SUBJECT: Photographic coverage of SpaceX Crew-2 ESA astronaut Thomas Pesquet during ARED PT 11 training.
PHOTOGRAPHER: BILL STAFFORD
jsc2020e053247
Here's my latest version of NASA RR #3, an EMD SW1500 switcher. The brick version will see a stickered NASA logo instead of the blue round tile; not sure about the flag and the '3', I might keep them brick built.
The photo shows the P-3 doing a fly-over ramp pass at Thule Air Base for ATM laser calibration before landing.
Credit: NASA/Kyle Krabill
To read more about IceBridge - Arctic 2012 go to: www.nasa.gov/mission_pages/icebridge/index.html
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IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These flights will provide a yearly, multi-instrument look at the behavior of the rapidly changing features of the Greenland and Antarctic ice.
Data collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat) -- in orbit since 2003 -- and ICESat-2, planned for early 2016. ICESat stopped collecting science data in 2009, making IceBridge critical for ensuring a continuous series of observations.
IceBridge will use airborne instruments to map Arctic and Antarctic areas once a year. IceBridge flights are conducted in March-May over Greenland and in October-November over Antarctica. Other smaller airborne surveys around the world are also part of the IceBridge campaign.
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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What's that inside the Heart Nebula? First, the large emission nebula dubbed IC 1805 looks, in whole, like a human heart. The nebula glows brightly in red light emitted by its most prominent element: hydrogen. The red glow and the larger shape are all created by a small group of stars near the nebula's center. In the center of the Heart Nebula are young stars from the open star cluster Melotte 15 that are eroding away several picturesque dust pillars with their energetic light and winds. The open cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, many dim stars only a fraction of the mass of our Sun, and an absent microquasar that was expelled millions of years ago. The Heart Nebula is located about 7,500 light years away toward the constellation of Cassiopeia. At the top right is the companion Fishhead Nebula. via NASA ift.tt/1jNXN9y
In this early May night skyscape, a mountain road near Bursa, Turkey seems to lead toward bright planets Mars and Saturn and the center of our Milky Way Galaxy, a direction nearly opposite the Sun in planet Earth's sky. The brightest celestial beacon on the scene, Mars, reaches its opposition tonight and Saturn in early June. Both will remain nearly opposite the Sun, up all night and close to Earth for the coming weeks, so the time is right for good telescopic viewing. Mars and Saturn form the tight celestial triangle with red giant star Antares just right of the Milky Way's central bulge. But tonight the Moon is also at opposition. Easy to see near bright Mars and Saturn, the Full Moon's light will wash out the central Milky Way's fainter starlight though, even in dark mountain skies. via NASA ift.tt/257Pojj
This illustration shows a star surrounded by a protoplanetary disk. A new study uses data from NASA's Spitzer Space Telescope and four ground-based telescopes to determine the distance from a star to the inner rim of its surrounding protoplanetary disk. Researchers used a method called "photo-reverberation," also known as "light echoes. via NASA ift.tt/26rHbbb
This was the Hubble Space Telescope's last and closest look at Comet ISON before perihelion and its disintegration. Hubble captured its closest look at the innermost region of the comet, where geysers of sublimating ice fueled a spectacular tail, on November 2, 2013.
The round coma around ISON's nucleus is blue, and the tail has a redder hue. Ice and gas in the coma reflect blue light from the Sun, while dust grains in the tail reflect more red light than blue light.
For more information, visit: www.spacetelescope.org/images/opo1347a/
Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
NASA image acquired January 16, 2011
NASA's Terra satellite captured a visible image of a weakening Tropical Storm Zelia heading for New Zealand on January 16 at 7 p.m. EST. The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument captured the image from its perch aboard the Terra satellite. The image showed a strong storm with a visible eye which fizzled quickly as a result of wind shear.
On Monday, January 17 at 10am EST (1500 UTC) Tropical Storm Zelia still had maximum sustained winds near 62 mph and was moving southeast toward New Zealand. At that time, it was centered about 495 nautical miles north-northwest of Auckland, New Zealand near 31.4 South and 170.3 East. It was still a tropical cyclone despite cooler water temperatures.
The New Zealand Meteorological Service noted on Monday, January 17 that Tropical Cyclone Zelia was northwest of Norfolk island and moving toward New Zealand. Zelia quickly weakened and became a remnant low, raining on northern New Zealand Tuesday afternoon and evening (local time).
To see weather radar from the New Zealand meteorological services for Auckland, go to: www.metservice.com/national/maps-rain-radar/rain-radar/al....
Text Credit: Rob Gutro
Credit: NASA/GSFC/Jeff Schmaltz/MODIS Land Rapid Response Team
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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