2017年6月30日星期五

The ‘Face’ of Jupiter


JunoCam images aren’t just for art and science – sometimes they are processed to bring a chuckle.

2017年6月29日星期四

Starry Night and Aurora


Expedition 52 Flight Engineer Jack Fischer of NASA photographed the glowing nighttime lights of an aurora from his vantage point in the International Space Station's cupola module on June 19, 2017. Part of the station's solar array is also visible.

2017年6月28日星期三

2017年6月27日星期二

As the Sun Rises, NASA's Global Hawk is Being Prepared for Flight


Hot summer days in Southern California’s Antelope Valley force many aircraft operations to start early in the morning before the sun rises. On a back ramp at Armstrong Flight Research Center on Edwards Air Force Base, a NASA Global Hawk goes through testing of its communication components and satellite connection links in preparation for flight.

2017年6月26日星期一

Saturnian Dawn


NASA's Cassini spacecraft peers toward a sliver of Saturn's sunlit atmosphere while the icy rings stretch across the foreground as a dark band.

2017年6月23日星期五

Hubble Uses Gravitational Lens to Capture Disk Galaxy


By combining the power of a "natural lens" in space with the capability of NASA's Hubble Space Telescope, astronomers made a surprising discovery—the first example of a compact yet massive, fast-spinning, disk-shaped galaxy that stopped making stars only a few billion years after the big bang.

2017年6月22日星期四

Enø


The White Cliffs of 'Rover'


This image was acquired by the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA's Mars Reconnaissance Orbiter on April 18, 2017, at 14:04 local Mars time. It reminded the HiRISE team of the rugged and open terrain of a stark shore-line, perhaps of the British Isles.

2017年6月21日星期三

Visualization of the August 21, 2017 Total Solar Eclipse


On August 21, 2017, the Earth will cross the shadow of the moon, creating a total solar eclipse. Eclipses happen about every six months, but this one is special. For the first time in almost 40 years, the path of the moon's shadow passes through the continental United States.

2017年6月20日星期二

Wind. Water. Fire. Earth.


Deployment of the Space Station's Roll Out Solar Array Experiment


Over the weekend of June 17-18, engineers on the ground remotely operated the International Space Station's Canadarm2 to extract the Roll Out Solar Array experiment from the SpaceX Dragon resupply ship. The experiment will remain attached to the Canadarm2 over seven days to test this advanced, flexible array that rolls out like a tape measure.

2017年6月19日星期一

Webb Telescope Set for Testing in Space Simulation Chamber


NASA’s James Webb Space Telescope sits in front of the door to Chamber A, a giant thermal vacuum chamber located at NASA’s Johnson Space Center. The telescope will soon be moved into the chamber, where it will spend a hot Houston summer undergoing tests at sub-freezing cryogenic temperatures.

2017年6月16日星期五

Jupiter’s Clouds of Many Colors


NASA’s Juno spacecraft was racing away from Jupiter following its seventh close pass of the planet when JunoCam snapped this image on May 19, 2017, from about 29,100 miles (46,900 kilometers) above the cloud tops.

2017年6月15日星期四

Northern Summer on Titan


NASA's Cassini spacecraft sees bright methane clouds drifting in the summer skies of Saturn's moon Titan, along with dark hydrocarbon lakes and seas clustered around the north pole.

2017年6月14日星期三

Celebrating Flag Day


NASA astronaut Jack Fischer took this photograph of an American flag in one of the windows of the International Space Station's cupola, a dome-shaped module through which operations on the outside of the station can be observed and guided. Throughout NASA's history, spacecraft and launch vehicles have always been decorated with flags.

2017年6月13日星期二

Hautes-Pyrénées


Illustration of Cool Dust Around an Active Black Hole


This artist illustration shows the thick ring of dust that can obscure the energetic processes that occur near the supermassive black hole of an active galactic nuclei. Researchers have found that the dust surrounding active, ravenous black holes is much more compact than previously thought.

2017年6月12日星期一

Turquoise Swirls in the Black Sea


On May 29, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured the data for this image of an ongoing phytoplankton bloom in the Black Sea. The image is a mosaic, composed from multiple satellite passes over the region.

2017年6月9日星期五

Pongal Catena on Ceres


This image from NASA's Dawn spacecraft shows the northeastern rim of Urvara Crater on Ceres.

2017年6月8日星期四

Watching a Volatile Stellar Relationship


In biology, “symbiosis” refers to two organisms that live close to and interact with one another. Astronomers have long studied a class of stars – called symbiotic stars – that co-exist in a similar way. Astronomers are gaining a better understanding of how volatile this close stellar relationship can be.

2017年6月7日星期三

NASA's 2017 Astronaut Candidates


NASA's 2017 astronaut candidates take a group photo at Ellington Field near Johnson Space Center. Pictured are, front row, left to right, Zena Cardman, Jasmin Moghbeli, Robb Kulin, Jessica Watkins, Loral O'Hara; back row, left to right, Jonny Kim, Frank Rubio, Matthew Dominick, Warren Hoburg, Kayla Barron, Bob Hines, and Raja Chari.

2017年6月6日星期二

An Astronaut's View From the 'Corner Office'


NASA astronaut Jack Fischer tweeted this photograph from the International Space Station on June 3, 2017, writing, "Never had a corner office with a view, but I must admit, I like it… a lot! #SpaceRocks." Fischer, a member of the 2009 astronaut class, has been living and working aboard the orbiting laboratory since April 20, 2017.

2017年6月5日星期一

Friolero


Mimas Dwarfed


From high above Saturn's northern hemisphere, NASA's Cassini spacecraft gazes over the planet's north pole, with its intriguing hexagon and bullseye-like central vortex.

2017年6月3日星期六

SpaceX CRS-11 Cargo Mission Launch


The SpaceX Falcon 9 rocket, with the Dragon spacecraft onboard, launches from pad 39A at NASA’s Kennedy Space Center in Cape Canaveral, Florida, Saturday, June 3, 2017.

2017年6月2日星期五

Clown Everywhere


A South Polar Pit or an Impact Crater?


This observation from NASA's Mars Reconnaissance Orbiter show it is late summer in the Southern hemisphere, so the Sun is low in the sky and subtle topography is accentuated in orbital images.

2017年6月1日星期四

Eleventh SpaceX Commercial Resupply Mission to Space Station Set for Launch


The SpaceX Falcon 9 rocket, with the Dragon spacecraft onboard, is seen shortly after being raised vertical at Launch Complex 39A at NASA’s Kennedy Space Center in Cape Canaveral, Florida, Thursday, June 1, 2017. Liftoff is scheduled for 5:55 p.m EDT.