ЖизньНа кого подписаться: Космически красивый инстаграм NASA
ПРОДОЛЖАЕМ РАССКАЗЫВАТЬ о достойных аккаунтах в соцсетях, через которые можно рассматривать целый мир.
Совсем недавно мы только и обсуждали, что фотографии Плутона в высоком разрешении. Многие, однако, не придали особого значения тому, что первые снимки Плутона появились в официальном инстаграме NASA. Представители космического агентства заявили, что держат Instagram в приоритете, и первый час фотография была доступна только там — к радости 3,5 миллиона подписчиков. К 2013 году NASA успели зарегистрироваться чуть ли не во всех соцсетях, пока не поняли, что инстаграм для них — самый удачный формат. Ведомство поступательно работает над тем, чтобы поддерживать свой имидж, а соответственно, и финансирование, так что лучше способа объяснить обывателям, зачем они вообще нужны, не придумаешь.
Когда NASA запускали свой аккаунт пару лет назад, они заявили, что при помощи фотографий «отправят своих фанатов в запредельное путешествие», и каждый день выполняют это обещание сполна. В их инстаграме сегодня сотни изображений поверхности Земли, космических тел и явлений, сделанных спутниками и космическими телескопами. Некоторые из снимков специально подкрашены так (например, черно-белые фотографии с Хаббла проходят через специальную обработку при помощи цветных фильтров), чтобы показать происходящие в космосе процессы. Если задуматься, что вся эта красота не продукт сложной компьютерной графики и фантазии дизайнера, а существует где-то там на самом деле, то дух захватывает по-настоящему.
Far Side of the Sun: This image of the sun was taken on Wednesday with the Extreme Ultraviolet Imager onboard our Solar TErrestrial RElations Observatory Ahead (STEREO-A) spacecraft, which collects images in several wavelengths of light that are invisible to the human eye. This image shows the sun in wavelengths of 171 angstroms, which are typically colorized in blue. STEREO-A has been on the far side of the sun since March 24, where it had to operate in safe mode, collecting and saving data from its radio instrument. The first images in over three months were received from STEREO-A on July 11. Image Credit: NASA/STEREO #nasa #nasabeyond #sun #heliophysics #stereo #earth #science
Grand Swirls: This new Hubble image shows NGC 1566, a beautiful galaxy located approximately 40 million light-years away in the constellation of Dorado (The Dolphinfish). NGC 1566 is an intermediate spiral galaxy, meaning that while it does not have a well-defined bar-shaped region of stars at its center — like barred spirals — it is not quite an unbarred spiral either. The centers of such galaxies are very active and luminous, emitting strong bursts of radiation and potentially harboring supermassive black holes that are many millions of times the mass of the sun. Image Credit: ESA/Hubble & NASA #nasa #hst #galaxy #hubble #astronomy #space #esa #science
Playing it conservatively, International Space Station flight controllers conducted a pre-determined avoidance maneuver today to steer the station well clear of a fragment of a spent Minotaur rocket body launched in 2013. Having tracked the object throughout the weekend and today, U.S. and Russian flight controllers executed a 5 minute, 22 second firing of the ISS Progress 58 thrusters at 2:58 p.m. CDT to slightly raise the station’s orbit and distance it from the fragment that was projected to pass within three statute miles of the complex later in the day. The maneuver raised the station’s altitude by just 106 feet at apogee and 7/10 of a mile at perigee, resulting in an ISS orbit of 254 x 244.8 statute miles. The crew was never in any danger and the maneuver will have no impact on the scheduled landing later this week of three crew members from the station. Seen here is a night view from the space station on May 18, 2015 that gives a view of brilliant city lights on the Earth’s surface shining beneath thousands of stars above. The thin line of Earth’s atmosphere can be seen with the green glow of aurora along the outer edge. Image credit: NASA #iss @iss #spacestation #space #nasa #astropics #stars
Coronal Loops Over a Sunspot Group The Atmospheric Imaging Assembly (AIA) instrument aboard NASA's Solar Dynamics Observatory (SDO) images the solar atmosphere in multiple wavelengths to link changes in the surface to interior changes. Its data includes images of the sun in 10 wavelengths every 10 seconds. When AIA images are sharpened a bit, such as this AIA 171Å channel image, the magnetic field can be readily visualized through the bright, thin strands that are called "coronal loops". Loops are shown here in a blended overlay with the magnetic field as measured with SDO's Helioseismic and Magnetic Imager underneath. Blue and yellow represent the opposite polarities of the magnetic field. The combined images were taken on Oct. 24, 2014, at 23:50:37 UT. Image Credit: NASA SDO #nasa #sdo #sun #coronalloops #solar #space #solardynamics
The Hubble Space Telescope turns 25 years old today! Celebrate with us as we share incredible images from Hubble: This composite image is a view of the colorful Helix Nebula taken with the Advanced Camera for Surveys aboard NASA's Hubble Space Telescope and the Mosaic II Camera on the 4-meter telescope at Cerro Tololo Inter-American Observatory in Chile. The object is so large that both telescopes were needed to capture a complete view. The Helix is a planetary nebula, the glowing gaseous envelope expelled by a dying, sun-like star. The Helix resembles a simple doughnut as seen from Earth. But looks can be deceiving. New evidence suggests that the Helix consists of two gaseous disks nearly perpendicular to each other. The Hubble images were taken on November 19, 2002; the Cerro Tololo images on Sept. 17-18, 2003. Credit: NASA, ESA, C.R. O'Dell (Vanderbilt University), M. Meixner and P. McCullough (STScI) #Hubble25 #Hubble #Telescope #HST #Space #NASA
Scientists Pinpoint Saturn With Exquisite Accuracy: Scientists have paired NASA's Cassini spacecraft with the National Science Foundation's Very Long Baseline Array (VLBA) radio-telescope system to pinpoint the position of Saturn and its family of moons to within about 2 miles (4 kilometers). The measurement is some 50 times more precise than those provided by ground-based optical telescopes. The feat improves astronomers' knowledge of Saturn's orbit and benefits spacecraft navigation and basic physics research. Image Credit: NASA/JPL/Space Science Institute #nasa #science #cassini #nsf #vlba #saturn #planets
It's #BlackFriday, but for us, it's the 2nd annual #BlackHoleFriday. Today, we'll post pics & info about black holes. Not the right #BlackFriday shopping weather? In this artist's illustration, turbulent winds of gas swirl around a black hole. Some of the gas is spiraling inward toward the black hole, but another part is blown away. A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes. They are invisible. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently than other stars. Artwork Credit: NASA, and M. Weiss (Chandra X -ray Center)
Twas the night before launch... At a Launch Readiness Review Saturday, managers for Orbital Sciences Corp. of Dulles, Virginia, and NASA gave a “go” to proceed toward the Sunday, July 13, launch of the Orb-2 cargo resupply mission to the International Space Station. Orbital is targeting a 12:52 p.m. EDT launch from the Mid-Atlantic Regional Spaceport Pad 0A at NASA’s Wallops Flight Facility in Virginia. NASA Television coverage of the launch will begin at noon EDT online at http://www.nasa.gov/nasatv. There is a 90-percent chance of favorable weather at the time of launch. Seen here is the full Moon setting in the fog behind the Orbital Sciences Corporation Antares rocket, with the Cygnus spacecraft onboard, Saturday, July 12, 2014, launch Pad-0A, NASA's Wallops Flight Facility in Virginia. The Antares will launch Sunday, July 13 at 12:52 p.m. EDT with the Cygnus spacecraft filled with over 3,000 pounds of supplies for the International Space Station, including science experiments, experiment hardware, spare parts, and crew provisions. The Orbital-2 mission is Orbital Sciences' second contracted cargo delivery flight to the space station for NASA. Photo Credit: NASA/Bill Ingalls #Orb2 #nasa #space #iss #launch #rocketlaunch #rocket
In case you missed it, it has been a decade since a robotic traveler from Earth first soared over rings of ice and fired its engine to fall forever into the embrace of Saturn. On June 30, the Cassini mission celebrated 10 years of exploring the planet, its rings and moons. The best view of Saturn's rings in the ultraviolet indicates there is more ice toward the outer part of the rings, than in the inner part, hinting at the origins of the rings and their evolution. Images taken during the Cassini spacecraft's orbital insertion on June 30 show compositional variation in the A, B and C rings. From the inside out, the "Cassini Division" in faint red at left is followed by the A ring in its entirety. The Cassini Division at left contains thinner, dirtier rings than the turquoise A ring, indicating a more icy composition. The red band roughly three-fourths of the way outward in the A ring is known as the Encke gap. The ring system begins from the inside out with the D, C, B and A rings followed by the F, G and E rings. The red in the image indicates sparser ringlets likely made of "dirty," and possibly smaller, particles than in the icier turquoise ringlets. This image was taken with the Ultraviolet Imaging Spectrograph instrument, which is capable of resolving the rings to show features up to 97 kilometers (60 miles) across, roughly 100 times the resolution of ultraviolet data obtained by the Voyager 2 spacecraft. Credit: NASA/JPL/University of Colorado #Cassini10 #NASA #space #saturn #solarsystem #cassini
As seen on #Cosmos: Supernova A supernova is the explosion of a star. It is the largest explosion that takes place in space. Supernovas are often seen in other galaxies. But supernovas are difficult to see in our own Milky Way galaxy because dust blocks our view. In 1604, Johannes Kepler discovered the last observed supernova in the Milky Way. NASA’s Chandra telescope discovered the remains of a more recent supernova. It exploded in the Milky Way more than a hundred years ago. A supernova happens where there is a change in the core, or center, of a star. A change can occur in two different ways, with both resulting in a supernova. The first type of supernova happens in binary star systems. Binary stars are two stars that orbit the same point. One of the stars, a carbon-oxygen white dwarf, steals matter from its companion star. Eventually, the white dwarf accumulates too much matter. Having too much matter causes the star to explode, resulting in a supernova. The second type of supernova occurs at the end of a single star’s lifetime. As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova. Seen here is Cassiopeia A, among the best-studied supernova remnants. This image blends data from NASA's Spitzer (red), Hubble (yellow), and Chandra (green and blue) observatories. Image Credit: NASA/JPL-Caltech/STScI/CXC/SAO #supernova #universe #stars #nasa #space
As seen on #Cosmos: The next major cosmic event to affect our galaxy, sun, and solar system: the titanic collision of our Milky Way galaxy with the neighboring Andromeda galaxy. The Milky Way is destined to get a major makeover during the encounter, which is predicted to happen four billion years from now. It is likely the sun will be flung into a new region of our galaxy, but our Earth and solar system are in no danger of being destroyed. This illustration shows a stage in the predicted merger between our Milky Way galaxy and the neighboring Andromeda galaxy, as it will unfold over the next several billion years. In this image, representing Earth's night sky in 3.75 billion years, Andromeda (left) fills the field of view and begins to distort the Milky Way with tidal pull. Credit: NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger #nasa #space #universe #hubble #stsci #hubbletelescope #galaxy #milkyway
NASA’s Operation IceBridge images Earth's polar ice in unprecedented detail to better understand processes that connect the polar regions with the global climate system. IceBridge utilizes a highly specialized fleet of research aircraft and the most sophisticated suite of innovative science instruments ever assembled to characterize annual changes in thickness of sea ice, glaciers, and ice sheets. In addition, IceBridge collects critical data used to predict the response of earth’s polar ice to climate change and resulting sea-level rise. IceBridge also helps bridge the gap in polar observations between NASA's ICESat satellite missions. NASA's Operation IceBridge started the 2014 Arctic campaign with two surveys of sea ice north of Greenland. The two flights follow similar surveys flow in previous years and continue the mission's goals of collecting data on changing sea ice in the Arctic. Seen here is the moon over northeast Greenland while the Icebridge aircraft was descending into the survey area north of the Fram Strait. Credit: NASA/Michael Studinger #icebridge #nasa #ice #snow #greenland #earth #moon #operationicebridge #nasaice