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Hubble Sees the Oldest Cluster in Milky Way Neighbor: This image shows NGC 121, a globular cluster in the constellation of Tucana (The Toucan). Globular clusters are big balls of old stars that orbit the centers of their galaxies like satellites — the Milky Way, for example, has around 150. NGC 121 belongs to one of our neighboring galaxies, the Small Magellanic Cloud (SMC). It was discovered in 1835 by English astronomer John Herschel, and in recent years it has been studied in detail by astronomers wishing to learn more about how stars form and evolve. Stars do not live forever — they develop differently depending on their original mass. In many clusters, all the stars seem to have formed at the same time, although in others we see distinct populations of stars that are different ages. By studying old stellar populations in globular clusters, astronomers can effectively use them as tracers for the stellar population of their host galaxies. With an object like NGC 121, which lies close to the Milky Way, Hubble is able to resolve individual stars and get a very detailed insight. NGC 121 is around 10 billion years old, making it the oldest cluster in its galaxy; all of the SMC's other globular clusters are 8 billion years old or younger. However, NGC 121 is still several billions of years younger than its counterparts in the Milky Way and in other nearby galaxies like the Large Magellanic Cloud. The reason for this age gap is not completely clear, but it could indicate that cluster formation was initially delayed for some reason in the SMC, or that NGC 121 is the sole survivor of an older group of star clusters. This image was taken using Hubble’s Advanced Camera for Surveys (ACS). Credit: ESA/Hubble & NASA, Acknowledgment: Stefano Campani #hubble #nasa #space #esa #universe #galaxy #galaxies #stars; -
We wish a happy 93rd birthday to original Mercury astronaut and former U.S. Senator John Glenn! Glenn wearing a Mercury pressure suit, is photographed at Cape Canaveral, Florida, during preflight training activities for the Mercury-Atlas 6 (MA-6) mission. Glenn made America's first manned Earth-orbital spaceflight on Feb. 20, 1962. Launched from Cape Canaveral (Florida) Launch Complex 14, he completed a successful three-orbit mission around the earth, reaching a maximum altitude (apogee) of approximately 162 statute miles and an orbital velocity of approximately 17,500 miles per hour. Glenn's "Friendship 7" Mercury spacecraft landed approximately 800 miles southeast of Cape Canaveral in the vicinity of Grand Turk Island. Mission duration from launch to impact was 4 hours, 55 minutes, and 23 seconds. Image Credit: NASA #happybirthday #nasa #space #mercury #friendship7 #astronaut; -
It's the pits! Lunar pits could one day shelter astronauts and reveal details of how 'Man in the Moon' formed. While the moon's surface is battered by millions of craters, it also has over 200 holes - steep-walled pits that in some cases might lead to caves that future astronauts could explore and use for shelter, according to new observations from our Lunar Reconnaissance Orbiter (LRO) spacecraft. This is a spectacular high-sun view of the Mare Tranquillitatis pit crater revealing boulders on an otherwise smooth floor. This image from LRO is 400 meters (1,312 feet) wide, north is up. Image Credit: NASA/GSFC/Arizona State University #nasa #lunar #moon #space #lro #astronauts #science; -
Caribbean Sea Viewed From the International Space Station: From the Earth-orbiting International Space Station, flying some 225 nautical miles above the Caribbean Sea in the early morning hours of July 15, NASA astronaut Reid Wiseman photographed this north-looking panorama that includes parts of Cuba, the Bahamas and Florida, and even runs into several other areas in the southeastern U.S. The long stretch of lights to the left of center frame gives the shape of Miami. Image Credit: NASA #nasa #space #spacestation #exp40 #iss #caribbean #earth; -
The crew welcomed more than a ton and a half of science, supplies and spacewalking equipment to the International Space Station Wednesday with the arrival of Orbital Sciences’ Cygnus cargo spacecraft. Orbital Sciences' Cygnus cargo spacecraft was installed to the Harmony module of the International Space Station at 8:53 a.m. EDT. The crew will begin unloading science investigations, food and supplies when the hatch between the newly arrived spacecraft and the Harmony module of the space station is opened Thursday. The spacecraft is scheduled to spend about a month attached to the station. Pictured here is the Cygnus being remotely guided by Mission Control in Houston to Node 2 using the #Canadarm2 This image was shared on Twitter by Astronaut Reid Wiseman earlier this morning. Image credit: NASA #nasa #space #orb2 #cygnus #orbitalsciences #iss #sunrise #spacestation #internationalspacestation;
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45 years ago now: #Apollo11 launches to the moon with Neil Armstrong, Buzz Aldrin & Michael Collins onboard. This coming weekend marks 45 years ago that Neil Armstrong took the small step onto the surface of the moon that changed the course of history. The years that followed saw a Space Age of scientific, technological and human research, on which we have built the modern era. We stand on a new horizon, poised to take the next giant leap—deeper into the solar system. The Apollo missions blazed a path for human exploration to the moon and today we are extending that path to near-Earth asteroids, Mars and beyond. Learn about our #NextGiantLeap: http://www.nasa.gov/nextgiantleap/; -
This rock encountered by NASA's Curiosity Mars rover is an iron meteorite called "Lebanon," similar in shape and luster to iron meteorites found on Mars by the previous generation of rovers, Spirit and Opportunity. Lebanon is about 2 yards or 2 meters wide (left to right, from this angle). The smaller piece in the foreground is called "Lebanon B." This view combines a series of high-resolution circular images taken by the Remote Micro-Imager (RMI) of Curiosity's Chemistry and Camera (ChemCam) instrument with color and context from rover's Mast Camera (Mastcam). The component images were taken during the 640th Martian day, or sol, of Curiosity's work on Mars (May 25, 2014). The imaging shows angular shaped cavities on the surface of the rock. One possible explanation is that they resulted from preferential erosion along crystalline boundaries within the metal of the rock. Another possibility is that these cavities once contained olivine crystals, which can be found in a rare type of stony-iron meteorites called pallasites, thought to have been formed near the core-mantle boundary within an asteroid. Iron meteorites are not rare among meteorites found on Earth, but they are less common than stony meteorites. On Mars, iron meteorites dominate the small number of meteorites that have been found. Part of the explanation could come from the resistance of iron meteorites to erosion processes on Mars. Credit: NASA/JPL-Caltech/LANL/CNES/IRAP/LPGNantes/CNRS/IAS/MSSS #nasa #mars #redplanet #curiosity #marscuriosity #space #solarsystem; -
Reddish Bands on Europa: This colorized image of Jupiter's moon Europa is a product of clear-filter grayscale data from one orbit of our Galileo spacecraft, combined with lower-resolution color data taken on a different orbit. The blue-white terrains indicate relatively pure water ice, whereas the reddish areas contain water ice mixed with hydrated salts, potentially magnesium sulfate or sulfuric acid. The reddish material is associated with the broad band in the center of the image, as well as some of the narrower bands, ridges, and disrupted chaos-type features. It is possible that these surface features may have communicated with a global subsurface ocean layer during or after their formation. Image Credit: NASA/JPL-Caltech/SETI Institute #nasa #europa #jupiter #solarsystem #moon #space #science; -
Our Next Giant Leap: The first humans who will step foot on Mars are walking the Earth today. It was 45 years ago that Neil Armstrong took the small step onto the surface of the moon that changed the course of history. The years that followed saw a Space Age of scientific, technological and human research, on which we have built the modern era. We stand on a new horizon, poised to take the next giant leap—deeper into the solar system. The Apollo missions blazed a path for human exploration to the moon and today we are extending that path to near-Earth asteroids, Mars and beyond. This is an artist's concept image of a boot print on the moon and on Mars. Image Credit: NASA #nasa #nextgiantleap #apllo45 #path2mars #mars #moon #apollo11; -
Changes Near Downhill End of a Martian Gully: This image of the surface of Mars covers a location that has been captured several times by the HiRISE camera aboard our Mars Reconnaissance Orbiter to look for changes in gullies. Changes have now been seen in many gullies on Mars, and show that these landforms are evolving rapidly. The timing of the changes is often in winter or early spring, suggesting that they are caused by the carbon dioxide frost that forms in and around most gullies every year. Image Credit: NASA/JPL-Caltech/Univ. of Arizona #nasa #space #mars #hirise #mro #planets #science;
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The crowd watches as the Orbital Sciences Corporation Antares rocket launches from Pad-0A with the Cygnus spacecraft onboard, Sunday, July 13, 2014 at NASA's Wallops Flight Facility in Virginia. The Cygnus spacecraft is 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/Joel Kowsky #orb2 #cygnus #antares #orbitalsciences #nasa #space #iss #rocket #rocketlaunch #launch; -
Orbital Sciences' Antares rocket carrying the Cygnus cargo spacecraft lifted off at 12:52 p.m. EDT and is on its way to the International Space Station. At the time of launch, the International Space Station was traveling at an altitude of 260 miles over northwest Australia. The Cygnus spacecraft is safely on orbit with solar arrays deployed. The cargo ship will rendezvous with the International Space Station on Wednesday, July 16. It will be grappled at approximately 6:39 a.m. by Commander Steve Swanson of NASA. He will be assisted in a backup position by Flight Engineer Alexander Gerst of the European Space Agency. Cygnus will be attached to the Earth-facing port of the station's Harmony node and will remain in place for approximately one month. It is scheduled depart the space station on August 15. Seen here is the Orbital Sciences Corporation Antares rocket launching from Pad-0A with the Cygnus spacecraft onboard, Sunday, July 13, 2014, at NASA's Wallops Flight Facility in Virginia. The Cygnus spacecraft is 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 #cygnus #antares #orbitalsciences #nasa #space #iss #rocket #rocketlaunch #launch; -
The countdown is progressing smoothly today for the launch of Orbital Sciences Corporation's Antares rocket, with the Cygnus cargo spacecraft on top. Weather remains 90 percent “go.” Liftoff is scheduled for 12:52 p.m. EDT from the Mid-Atlantic Spaceport's Pad 0A at NASA's Wallops Flight Facility in Virginia. There is a five minute window for launch. Live coverage of the launch on NASA TV will begin at noon at: http://www.nasa.gov/ntv Cygnus is loaded with approximately 3,300 pounds of science investigations, food, supplies and hardware for the space station and its crew. Image credit: NASA/Aubrey Gemignani #orb2 #antares #cygnus #orbitalsciences #nasa #space #rocket #launch #rocketlaunch; -
A full moon is seen rising over Orbital Sciences' Antares rocket ready to carry #Orb2 to the #ISS at 12:52pm ET Sunday. The Antares is scheduled to launch 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 #Orb2 mission is Orbital Sciences' second contracted cargo delivery flight to the space station for NASA. Photo Credit: NASA/Aubrey Gemignani; -
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;
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