Expedition 53 Qualification Exams

Expedition 53 crew members: Joe Acaba of NASA, left, Alexander Misurkin of Roscosmos, center, and Mark Vande Hei of NASA answer questions from the press outside the Soyuz simulator ahead of their Soyuz qualification exams, Thursday, Aug. 31, 2017 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia.… Read the rest

NASA’s IceBridge Surveys Glaciers in Northeast Greenland

NASA’s Operation IceBridge is flying its summer Arctic land ice campaign in Greenland, continuing its measurements of the Greenland Ice Sheet and its outlet glaciers. This photograph from the mission was taken on Aug. 29, 2017, from 28,000 feet, looking north while surveying Nioghalvfjerdsbrae (79 N) Glacier in northeast Greenland.… Read the rest

Aug. 29, 1965 – Gemini V Crew Returns to Earth

Gemini V command pilot Gordon Cooper (right) and Charles “Pete” Conrad, pilot, walk across the deck of the aircraft carrier USS Lake Champlain following their spacecraft’s recovery from the ocean on Aug. 29, 1965. The eight-day Gemini V endurance mission doubled America’s spaceflight record set two months earlier.… Read the rest

Supersonic Flight Campaign Continues at Kennedy Space Center

A NASA F-18 jet takes off from the agency’s Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida on Aug. 23, 2017. The F-18 jets fly at supersonic speeds while agency researchers measure the effects of low-altitude turbulence caused by sonic booms, part of NASA’s Sonic Booms in Atmospheric Turbulence, or SonicBAT II Program.… Read the rest

A World of Snowy Dunes on Mars

It was spring in the Northern hemisphere when this image was taken on May 21, 2017, by the HiRISE camera on NASA’s Mars Reconnaissance Orbiter. Over the winter, snow and ice have inexorably covered the dunes. Unlike on Earth, this snow and ice is carbon dioxide, better known to us as dry ice.… Read the rest

The Eclipse 2017 Umbra Viewed from Space

As millions of people across the United States experienced a total eclipse as the umbra, or moon’s shadow passed over them, only six people witnessed the umbra from space. The space station crossed the path of the eclipse three times as it orbited above the continental United States at an altitude of 250 miles.… Read the rest

Saturn-lit Tethys

Cassini gazes across the icy rings of Saturn toward the icy moon Tethys, whose night side is illuminated by Saturnshine, or sunlight reflected by the planet.… Read the rest