Welcome to a Comet, from Lander on Surface

The Philae lander of the European Space Agency’s Rosetta mission is safely on the surface of Comet 67P/Churyumov-Gerasimenko, as these first two images from the lander’s CIVA camera confirm. One of the lander’s three feet can be seen in the foreground. The view is a two-image mosaic taken on Nov. 12, 2014.

The lander separated from the orbiter at 09:03 UTC (1:03 a.m. PST) for touch down on comet 67P seven hours later.

Rosetta and Philae had been riding through space together for more than 10 years. Philae is the first probe to achieve soft landing on a comet, and Rosetta is the first to rendezvous with a comet and follow it around the sun. The information collected by Philae at one location on the surface will complement that collected by the Rosetta orbiter for the entire comet.

Rosetta is a European Space Agency mission with contributions from its member states and NASA. Rosetta’s Philae lander is provided by a consortium led by the German Aerospace Center, Cologne; Max Planck Institute for Solar System Research, Gottingen; French National Space Agency, Paris; and the Italian Space Agency, Rome. NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the U.S. participation in the Rosetta mission for NASA’s Science Mission Directorate in Washington.  Rosetta carries three NASA instruments in its 21-instrument payload.

For more information on the U.S. instruments aboard Rosetta, visit: http://ift.tt/LrJPJ3 . For more information about Rosetta, visit http://ift.tt/y2RjFt .

Copyright: ESA/Rosetta/Philae/CIVA via NASA http://ift.tt/1uq8C2Z

Orion Spacecraft Rolls Past the Vehicle Assembly Building

At NASA’s Kennedy Space Center in Florida, the agency’s Orion spacecraft passes the spaceport’s iconic Vehicle Assembly Building as it is transported to Launch Complex 37 at Cape Canaveral Air Force Station on the evening of Tuesday, Nov. 11, 2014. After arrival at the launch pad, United Launch Alliance engineers and technicians will lift Orion and mount it atop its Delta IV Heavy rocket. Orion began its journey to the launch pad at at the Launch Abort System Facility, where a 52-foot-tall protective fairing and the launch abort system were attached to the 10-foot, 11-inch-tall crew module. Resting atop a specialized Kamag transporter, Orion was moved to Space Launch Complex 37B at Cape Canaveral Air Force Station. The move began at 8:54 p.m. EST and concluded at 3:07 a.m., Wednesday, Nov. 12.

Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. Orion is scheduled to launch Dec. 4, 2014 atop a United Launch Alliance Delta IV Heavy rocket in its first unpiloted flight test, and in 2018 on NASA’s Space Launch System rocket.

> More about Orion

Image Credit: NASA/Kim Shiflett via NASA http://ift.tt/1EBv2BG

Expedition 41 Crew Lands Safely Back on Earth

Expedition 41 Flight Engineer Alexander Gerst of the European Space Agency (ESA), left, Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), center, and NASA Flight Engineer Reid Wiseman, sit in chairs outside the Soyuz TMA-13M capsule just minutes after they landed in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. 

Image Credit: NASA/Bill Ingalls via NASA http://ift.tt/1oARR4w

Astronaut Reid Wiseman Shares Earth Art While Preparing for Return

NASA Astronaut Reid Wiseman shared this image of Yosemite via his twitter account this morning. Wiseman later tweeted: “We cranked up our #Soyuz this morning and test fired all the thrusters. Everything worked flawlessly – ready for a Sunday departure.” – @astro_reid

The homebound Expedition 40/41 trio, consisting of Soyuz Commander Max Suraev and Flight Engineers Alexander Gerst and Wiseman, is counting down to its Nov. 9 departure inside the Soyuz TMA-13M spacecraft. They are packing gear to be returned home while they continue science and maintenance on the U.S. side of the International Space Station.

Back on Earth, the new Expedition 42/43 crew is getting ready for its launch to the space station from the Baikonur Cosmodrome in Kazakhstan on Nov. 23. Soyuz Commander Anton Shkaplerov will be joined by NASA astronaut Terry Virts and European Space Agency astronaut Samantha Cristoforetti aboard a Soyuz TMA-15M spacecraft to begin a 5-1/2 month mission aboard the orbital laboratory.

Space Station Blog.

Image Credit: NASA/Reid Wiseman via NASA http://ift.tt/1zAm7QT

NASA’s Solar Dynamics Observatory Captures Intense Space Weather

An active region on the sun emitted a mid-level solar flare, peaking at 4:47 a.m. EST on Nov. 5, 2014. This is the second mid-level flare from the same active region, labeled AR 12205, which rotated over the left limb of the sun on Nov. 3. The image was captured by NASA’s Solar Dynamics Observatory (SDO) in extreme ultraviolet light that was colorized in red and gold.

Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel.

This flare is classified as an M7.9-class flare. M-class flares are a tenth the size of the most intense flares, the X-class flares. The number provides more information about its strength. An M2 is twice as intense as an M1, an M3 is three times as intense, etc.

More information on NASA’s SDO Mission.

Image Credit: NASA/SDO via NASA http://ift.tt/1pqwcwv

Orion Prepares to Move to Launch Pad

On Dec. 4, Orion is scheduled to launch atop a United Launch Alliance Delta IV Heavy rocket from Cape Canaveral Air Force Station’s Space Launch Complex 37 in Florida. During the test, Orion will travel 3,600 miles in altitude above Earth. 4 1/2 hours later, the spacecraft will reenter the atmosphere at 20,000 mph and splash down in the Pacific Ocean. Orion’s first flight will verify launch and high-speed reentry systems such as avionics, attitude control, parachutes and the heat shield.

Four recently-installed protective panels make up Orion’s Ogive. The Ogive reduces drag and acoustic load on the crew module, making it a smoother ride for the spacecraft. Pictured here, inside the Launch Abort System Facility at NASA’s Kennedy Space Center in Florida, a crane brings the fourth and final Ogive panel closer for installation on Orion’s Launch Abort System.

The Ogive installation was one of the last pieces of the puzzle for Orion prior to its move to the launch pad on Nov. 10. There, it will be lifted and attached to the rocket for its December launch.

More on Orion.

Image Credit: NASA via NASA http://ift.tt/1y3NPRZ

Early Snow on the Great Smokies

A potent weather system with origins in Manitoba, Canada moved south across the Great Lakes on Halloween and blew all the way to Florida, bringing snow and hard frost to regions that do not see either in some winters. The storm system then moved back up the U.S. East Coast and pounded New England with a Nor’easter.

This image shows the southern Appalachian Mountain range, along the border of Tennessee, North Carolina, and South Carolina, as fall color was turned to winter white. The natural-color image was acquired by the Visible Infrared Imaging Radiometer Suite on the Suomi NPP satellite on Nov. 2, 2014.

Six inches of snow fell in Asheville, North Carolina, where snow usually doesn’t fall before Christmas. Higher in the mountains, near Gatlinburg, Tennessee, LeConte Lodge (elevation 6400 feet) reported 22 inches of snow and temperatures of 9 degrees Fahrenheit. In Columbia, South Carolina, measurable snow fell nine days earlier than ever recorded for that city.

More information.

Image Credit: NASA Earth Observatory via NASA http://ift.tt/1x3Hasz

Glaciers and Mountains in West Antarctica

Glaciers and mountains in the evening sun are seen on an Operation IceBridge research flight, returning from West Antarctica on Oct. 29, 2014.

NASA is carrying out its sixth consecutive year of Operation IceBridge research flights over Antarctica to study changes in the continent’s ice sheet, glaciers and sea ice. This year’s airborne campaign revisits a section of the Antarctic ice sheet that recently was found to be in irreversible decline.

IceBridge uses a suite of instruments that includes a laser altimeter, radar instruments, cameras, and a gravimeter, which is an instrument that detects small changes in gravity. These small changes reveal how much mass these glaciers have lost. Researchers plan to measure previously unsurveyed regions of Antarctica, such as the upper portions of Smith Glacier in West Antarctica, which is thinning faster than any other glaciers in the region. The mission also plans to collect data in portions of the Antarctic Peninsula, such as the Larsen C, George VI and Wilkins ice shelves and the glaciers that drain into them. The Antarctic Peninsula has been warming faster than the rest of the continent.

In addition to extending the data record of NASA’s Ice, Cloud and Land Elevation Satellite (ICESat), which stopped collecting data in 2009, IceBridge will also help set the stage for ICESat-2 by measuring ice the satellite will fly over.

> Operation IceBridge Antarctic 2014 Campaign

Image Credit: NASA/Michael Studinger via NASA http://ift.tt/1tzK9rQ

Specular Spectacular

This near-infrared, color mosaic from NASA’s Cassini spacecraft shows the sun glinting off of Titan’s north polar seas. While Cassini has captured, separately, views of the polar seas (see PIA17470) and the sun glinting off of them (see PIA12481 and PIA18433) in the past, this is the first time both have been seen together in the same view.

The sunglint, also called a specular reflection, is the bright area near the 11 o’clock position at upper left. This mirror-like reflection, known as the specular point, is in the south of Titan’s largest sea, Kraken Mare, just north of an island archipelago separating two separate parts of the sea.

This particular sunglint was so bright as to saturate the detector of Cassini’s Visual and Infrared Mapping Spectrometer (VIMS) instrument, which captures the view. It is also the sunglint seen with the highest observation elevation so far — the sun was a full 40 degrees above the horizon as seen from Kraken Mare at this time — much higher than the 22 degrees seen in PIA18433. Because it was so bright, this glint was visible through the haze at much lower wavelengths than before, down to 1.3 microns.

The southern portion of Kraken Mare (the area surrounding the specular feature toward upper left) displays a “bathtub ring” — a bright margin of evaporate deposits — which indicates that the sea was larger at some point in the past and has become smaller due to evaporation. The deposits are material left behind after the methane & ethane liquid evaporates, somewhat akin to the saline crust on a salt flat.

The highest resolution data from this flyby — the area seen immediately to the right of the sunglint — cover the labyrinth of channels that connect Kraken Mare to another large sea, Ligeia Mare. Ligeia Mare itself is partially covered in its northern reaches by a bright, arrow-shaped complex of clouds. The clouds are made of liquid methane droplets, and could be actively refilling the lakes with rainfall.

The view was acquired during Cassini’s August 21, 2014, flyby of Titan, also referred to as “T104” by the Cassini team.

The view contains real color information, although it is not the natural color the human eye would see. Here, red in the image corresponds to 5.0 microns, green to 2.0 microns, and blue to 1.3 microns. These wavelengths correspond to atmospheric windows through which Titan’s surface is visible. The unaided human eye would see nothing but haze, as in PIA12528.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. JPL, a division of the California Institute of Technology, Pasadena, manages the mission for NASA’s Science Mission Directorate in Washington. The VIMS team is based at the University of Arizona in Tucson.

More information about Cassini is available at http://ift.tt/ZjpQgB and http://ift.tt/Jcddhk.

Image Credit: NASA/JPL-Caltech/University of Arizona/University of Idaho via NASA http://ift.tt/1s0kCnh

Fifteen Years of NASA’s Chandra X-ray Observatory

This Chandra X-ray Observatory image of the Hydra A galaxy cluster was taken on Oct. 30, 1999, with the Advanced CCD Imaging Spectrometer (ACIS) in an observation that lasted about six hours. Hydra A is a galaxy cluster that is 840 million light years from Earth. The cluster gets its name from the strong radio source, Hydra A, that originates in a galaxy near the center of the cluster. Optical observations show a few hundred galaxies in the cluster. Chandra X-ray observations reveal a large cloud of hot gas that extends throughout the cluster. The gas cloud is several million light years across and has a temperature of about 40 million degrees in the outer parts decreasing to about 35 million degrees in the inner region.

NASA’s Chandra X-ray Observatory was launched into space fifteen years ago aboard the Space Shuttle Columbia. Since its deployment on July 23, 1999, Chandra has helped revolutionize our understanding of the universe through its unrivaled X-ray vision. Chandra, one of NASA’s current “Great Observatories,” along with the Hubble Space Telescope and Spitzer Space Telescope, is specially designed to detect X-ray emission from hot and energetic regions of the universe.

Image Credit: NASA/CXC/SAO via NASA http://ift.tt/1DCG9ru