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The Lead

Testing Electric Propulsion -- Courtesy of NASA Langley/David C. Bowman

Greased Lightning Tests Electric Propulsion

August 20, 2014 9:35 am | by NASA | News | Comments

On August 19, 2014, National Aviation Day, a lot of people reflected on how far aviation has come in the last century. Could this be the future — a plane with many electric motors that can hover like a helicopter and fly like a plane, and that could revolutionize air travel?

US Gulf Coast at Night

August 19, 2014 12:05 pm | News | Comments

One of the Expedition 40 crew members aboard the International Space Station photographed this...

Guanidine Hydrochloride, Chaotropic Salt

August 18, 2014 10:12 am | News | Comments

This 200X photo of guanidine hydrochloride, a chaotropic salt used to denature proteins,...

Magnificent Face-on Image of Golden Rings of Star Formation

August 15, 2014 11:39 am | by European Space Agency | News | Comments

Taking center stage in this new NASA/ESA Hubble Space Telescope image is a galaxy known as NGC...

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Lily of the Valley Rhizome Section -- Courtesy of Nikon Small World

Lily of the Valley Rhizome Section

August 14, 2014 12:41 pm | News | Comments

This 40X photo of a lily of the valley rhizome section received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Dr. Guichuan Hou of the Dewel Microscopy Facility in Boone, NC.

Butterfly Tongue -- Courtesy of Nikon Small World

Close-up: Butterfly Tongue

August 13, 2014 11:28 am | News | Comments

This 60X photo of a butterfly tongue received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Ms. Kata Kenesei and Barbara Orsolits of the Institute of Experimental Medicine - Hungarian Academy of Sciences in Budapest, Hungary, using confocal microscopy.

Lunar Transit -- Courtesy of NASA/SDO

Solar Dynamics Observatory Captures Images of Lunar Transit

August 12, 2014 11:55 am | by NASA | News | Comments

On July 26, 2014, from 10:57 a.m. to 11:42 a.m. EDT, the moon crossed between NASA’s Solar Dynamics Observatory (SDO) and the sun, a phenomenon called a lunar transit. A lunar transit happens approximately twice a year, causing a partial solar eclipse that can only be seen from SDO's point of view.

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Hurricanes Iselle and Julio -- Courtesy of NASA; image by Jeff Schmaltz, LANCE/EOSDIS Rapid Response

Hurricanes Iselle and Julio Nearing the Hawaiian Islands

August 11, 2014 11:38 am | by Mike Carlowicz, NASA | News | Comments

In early August 2014, not one but two hurricanes were headed for the Hawaiian Islands. Storms arriving from the east are a relative rarity, and landfalling storms are also pretty infrequent. This image is a composite of three satellite passes over the tropical Pacific Ocean in the early afternoon.

Next-Generation Microshutter Array Technology -- Courtesy of NASA/Bill Hrybyk

Next-Generation Microshutter Array Technology

August 8, 2014 11:56 am | by NASA | News | Comments

NASA technologists have hurdled a number of significant challenges in their quest to improve a revolutionary observing technology originally created for the James Webb Space Telescope. This image shows a close-up view of the next-generation microshutter arrays — designed to accommodate the needs of future observatories — during the fabrication process.

Cut Gemstone from Minas Gerais, Brazil -- Courtesy of Nikon Small World

Cut Gemstone from Minas Gerais, Brazil

August 7, 2014 3:00 pm | News | Comments

This 40X photo of an inclusion in a cut gemstone: rutile crystals (titanium oxide) included in rock crystal (quartz) from Minas Gerais, Brazil, received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope.

Head of a Male Mosquito -- Courtesy of Nikon Small World

Head of a Male Mosquito

August 6, 2014 3:02 pm | News | Comments

This 70X photo of the head of a male mosquito received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken byDr. Gareth Paul Jones of the University of Brighton in Eastbourne, Brighton, UK, using stereomicroscopy and fiber optic illumination.

Iberian Peninsula at Night -- Courtesy of NASA

Iberian Peninsula at Night

August 5, 2014 11:50 am | by NASA | News | Comments

One of the Expedition 40 crew members aboard the International Space Station recorded this early evening photo of the entire Iberian Peninsula (Spain and Portugal) on July 26, 2014. Part of France can be seen at the top of the image and the Strait of Gibraltar is visible at bottom, with a very small portion of Morocco visible near the lower right corner.

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Rapidly Evolving Martian Gully -- Courtesy of NASA/JPL-Caltech/University of Arizona

Rapidly Evolving Martian Gully

July 30, 2014 2:45 pm | by NASA | News | Comments

This image of the surface of Mars covers a location that has been captured several times by the HiRISE camera aboard NASA's 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.

Vitamin C Crystal -- Courtesy of Nikon Small World

Close-up: Vitamin C Crystal

July 30, 2014 11:46 am | News | Comments

This 100X photo of ascorbic acid, or vitamin C, crystal received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Mr. Raul M. Gonzalez...

View of Tycho Central Peak – Courtesy of NASA/Goddard/Arizona State University

Favorite Moon Image: View of Tycho Central Peak

July 30, 2014 9:21 am | by NASA | News | Comments

The Lunar Reconnaissance Orbiter (LRO) is celebrating its fifth anniversary in space. LRO launched from Florida on June 18, 2009. After a four-day journey, the orbiter successfully entered lunar orbit on June 23. In the succeeding five years, LRO has continued to shape our view of our nearest celestial neighbor.

Fish Egg Cluster -- Courtesy of Nikon Small World

Fish Egg Cluster

July 29, 2014 2:16 pm | News | Comments

This 6.6X photo of a benthic zone fish egg cluster received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Dr. Jaime Gomez-Gutierrez of Centro Interdisciplinario de Ciencias Marinas in La Paz, Baja California Sur, Mexico, using stereomicroscopy.

Orion's Belt Rises through the Atmosphere -- Courtesy of NASA

Orion's Belt Rises through the Atmosphere

July 29, 2014 12:17 pm | News | Comments

On June 23, 2014, Expedition 40 Flight Engineer Reid Wiseman captured this image which connects Earth to the International Space Station and to the stars. Among the "stellar" scene is part of the constellation Orion, near the center of the frame. The U.S. laboratory or Destiny is seen in the upper right.

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Recrystallized Sulfur -- Courtesy of Nikon Small World

Close-up: Recrystallized Sulfur

July 28, 2014 12:06 pm | News | Comments

This 100X photo of recrystallized sulfur received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Dr. Edward Leighman Gafford in Richland, WA, using polarized light.

Caribbean Sea Viewed from International Space Station -- Courtesy of NASA

Caribbean Sea Viewed from International Space Station

July 25, 2014 1:51 pm | News | Comments

From the Earth-orbiting International Space Station, flying some 225 nautical miles above the Caribbean Sea in the early morning hours of July 15, 2104, 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 US. The long stretch of lights to the left of center frame gives the shape of Miami.

Vorticella Protozoa -- Courtesy of Nikon Small World

Close-up: Vorticella Protozoa

July 24, 2014 12:57 pm | News | Comments

This 20X photo of the protozoa Vorticella sp. received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Mr. Frank Fox ofKonz, Rheinland-Pfalz, Germany, using a darkfield technique.

Crab Nebula -- Courtesy of NASA/CXC/SAO

Chandra Celebrates 15th Anniversary: Crab Nebula

July 23, 2014 1:32 pm | by NASA | News | Comments

In 1054 AD, Chinese astronomers and others around the world noticed a new bright object in the sky. This “new star” was, in fact, the supernova explosion that created what is now called the Crab Nebula. At the center of the Crab Nebula is an extremely dense, rapidly rotating neutron star left behind by the explosion.

Reddish Bands on Europa -- Courtesy of NASA/JPL-Caltech/SETI Institute

Reddish Bands on Europa

July 22, 2014 3:33 pm | by NASA | News | Comments

This colorized image of Jupiter's moon Europa is a product of clear-filter grayscale data from one orbit of NASA's 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 Eagle Prepares to Land

July 21, 2014 2:00 pm | by NASA | News | Comments

The Apollo 11 Lunar Module Eagle, in a landing configuration was photographed in lunar orbit from the Command and Service Module Columbia. Inside the module were Commander Neil A. Armstrong and Lunar Module Pilot Buzz Aldrin. The long rod-like protrusions under the landing pods are lunar surface sensing probes. Upon contact with the lunar surface, the probes sent a signal to the crew to shut down the descent engine.

Deep-sea Amphipod

July 18, 2014 3:29 pm | News | Comments

This photo of a deep-sea amphipod received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Mr. David Forest and Alison Sweeney ofUC Santa Barbara, Neuroscience Research Institute in Santa Barbara, CA, using a brightfield technique.

Two Burs Locked Together

July 17, 2014 11:27 am | News | Comments

This 15x photo of two burs locked together received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Mr. Neil James Egan of PPG Industries, Electro-coat Quality Assurance in Cleveland, OH, using a brightfield technique.

Phytoplankton Bloom off the Coast of Iceland

July 15, 2014 4:42 pm | News | Comments

A spring bloom of phytoplankton lingered in the Atlantic Ocean off the coast of Iceland in early June, 2014. The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Aqua satellite captured this true-color image on June 5. At that time, swirling jewel tones of a vast bloom were visible between banks of white clouds.

Liftoff! Orbiting Carbon Observatory Heads to Orbit

July 15, 2014 11:48 am | News | Comments

On July 2, 2014, a United Launch Alliance Delta II rocket launched with the Orbiting Carbon Observatory-2 (OCO-2) satellite onboard from Space Launch Complex 2 at Vandenberg Air Force Base, CA. OCO-2 is now in orbit. It is NASA's first mission dedicated to studying global distribution of atmospheric carbon dioxide, the leading human-produced greenhouse gas driving changes in Earth's climate.

The Massive Perseus Cluster

July 11, 2014 4:35 pm | News | Comments

This image is Chandra’s latest view of the Perseus Cluster, where red, green, and blue show low, medium, and high-energy X-rays respectively. It combines data equivalent to more than 17 days’ worth of observing time taken over a decade with Chandra.

Brain Cancer Stem Cells from Human Brain Cancer Tissue

July 11, 2014 12:23 pm | News | Comments

This 200x photo of brain cancer stem cells from human brain cancer tissue received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken using immunofluorescence.

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