Dr. Nancy Grace Roman, Astronomer

Dr. Nancy Grace Roman is shown with a model of the Orbiting Solar Observatory (OSO) in 1962. She was the first Chief of Astronomy in the Office of Space Science at NASA Headquarters and the first woman to hold an executive position at NASA. She had oversight for the planning and development of programs including the Hubble Space Telescope. via NASA http://ift.tt/2ohUxc9

Robotics Work on Space Station Set Up Thursday Spacewalk

The Pressurized Mating Adapter-3 (PMA-3) is in the grip of the International Space Station's Canadarm2 robotic arm during its relocation and attachment to the station's Harmony module on March 26,2017. A spacewalk by NASA astronauts Shane Kimbrough and Peggy Whitson, which began at 7:29 a.m., will finalize the PMA-3 cable connections on Harmony. via NASA http://ift.tt/2nzAyCU

The Splitting of the Dunes

The mound in the center of this Mars Reconnaissance Orbiter image appears to have blocked the path of the dunes as they marched south (north is to the left in this image) across the scene. Smaller dunes run perpendicular to some of the larger-scale dunes, probably indicating a shift in wind directions in this area. via NASA http://ift.tt/2nAjle8

Expedition 50 Spacewalks Prepare Station for Arrival of Commercial Crew Spacecraft

Flight Engineer Thomas Pesquet of ESA is seen floating outside the International Space Station during a spacewalk. Pesquet and Expedition 50 Commander Shane Kimbrough of NASA conducted the six-hour-and-34-minute spacewalk on March 24, 2017. A second spacewalk, by Kimbrough and NASA astronaut Peggy Whitson, is scheduled for Thursday, March 30. via NASA http://ift.tt/2nwyygv

Dark Spot and Jovian ‘Galaxy’

This enhanced-color image of a mysterious dark spot on Jupiter seems to reveal a Jovian “galaxy” of swirling storms. via NASA http://ift.tt/2o23lmK

Hubble Spots Two Interacting Galaxies Defying Cosmic Convention

Hubble spots two interacting galaxies some 60 million light-years away in the constellation of Leo. via NASA http://ift.tt/2mzfMG8

Dr. Ellen Ochoa on the Flight Deck of Shuttle Atlantis

On April 15, 2002, STS-110 Mission Specialist Ellen Ochoa works at the Remote Manipulator System controls on the aft flight deck of space shuttle Atlantis. Dr. Ochoa, a veteran astronaut, is currently the 11th director of Johnson Space Center. She became the first Hispanic woman to go to space when she served on the STS-56 mission. via NASA http://ift.tt/2mUXF97

Space Station View of Mount Etna Erupting

The Expedition 50 crew aboard the International Space Station had a nighttime view from orbit of Europe's most active volcano, Mount Etna, erupting on March 19, 2017. Astronaut Thomas Pesquet of ESA captured this image, writing, "Mount Etna, in Sicily. The volcano is currently erupting and the molten ava is visible from space, at night!" via NASA http://ift.tt/2nC1nJ4

Photographer Carla Thomas on a Supersonic Flight

“Armstrong Flight Research Center chief pilot Nils Larson and I were flying supersonic runs to note the handling qualities between the single seat and two seat F/A-18 aircraft for the Sonic Booms in Atmospheric Turbulence, or SonicBAT program," said Carla Thomas, one of NASA's two female in-flight photographers. via NASA http://ift.tt/2n9LkkA

Mackenzie River in Canada's Northwest Territories

This view, acquired on Nov. 7, 2016, by the Operational Land Imager (OLI) on Landsat 8, shows a portion of Canada's Mackenzie River Delta and the town of Inuvik, home to more than 3,000 people. A frozen highway -- 194 kilometers (120 miles) long -- runs between the remote outposts of Inuvik and Tuktoyaktuk along the river’s East Channel. via NASA http://ift.tt/2n6yXWH

Dublin at Night

Expedition 50 Commander Shane Kimbrough of NASA shared this nighttime image of Dublin on March 17, 2017, writing, "Happy #StPatricksDay Spectacular #Dublin, Ireland captured by @thom_astro from @Space_Station. Enjoy the #StPatricksFest Parade down there!" via NASA http://ift.tt/2mXdeAb

Annie Easley, Computer Scientist and Mathematician

Annie Easley at NASA Glenn Research Center. In 1955, Easley began her career at NASA, then the National Advisory Committee for Aeronautics (NACA), as a human computer performing complex mathematical calculations. via NASA http://ift.tt/2mwYwwB

NASA's Webb Telescope Ghostly 'Lights Out' Inspection

The technicians who are inspecting the telescope and its expansive golden mirrors look like ghostly wraiths in this image as they conduct a "lights out inspection" in the Spacecraft Systems Development and Integration Facility (SSDIF) at NASA's Goddard Space Flight Center in Greenbelt, Maryland. via NASA http://ift.tt/2n006uB

Traffic-free and Sky-high

The Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua satellite captured this natural-color image of cloud streets over the Barents Sea and Mezhdusharsky Island on March 7, 2017. Such formations occur frequently in the region in late winter. via NASA http://ift.tt/2mJ59z3

The Big One

Mimas' gigantic crater Herschel lies near the moon's limb in this Cassini view. via NASA http://ift.tt/2mDR6el

Hubble Hones In on a Hypergiant's Home

The super star cluster Westerlund 1, only 15,000 light-years away in our Milky Way neighborhood, hosts one of the largest stars ever discovered. via NASA http://ift.tt/2mr5mVH

NASA's Orion Spacecraft Parachutes Tested at U.S. Army Yuma Proving Ground

Engineers Successfully Test the Parachutes for NASA's Orion Spacecraft at the U.S. Army Yuma Proving Ground via NASA http://ift.tt/2lHA9jX

NASA's Orion Spacecraft Parachute Test at U.S. Army Yuma Proving Ground

Engineers Successfully Test the Parachutes for NASA's Orion Spacecraft at the U.S. Army Yuma Proving Ground via NASA http://ift.tt/2m6ypNA

Women Scientists at NASA in January 1959

January 1959. Women Scientists Lucille Coltrane, Jean Clark Keating, Katherine Cullie Speegle, Doris 'Dot' Lee, Ruth Whitman, and Emily Stephens Mueller. via NASA http://ift.tt/2mYY7ri

A Mass of Viscous Flow Features

Viscous, lobate flow features are commonly found at the bases of slopes in the mid-latitudes of Mars, and are often associated with gullies. via NASA http://ift.tt/2mBvH63

Technicians Secure the Protective Covering Around CYGNUS

In the Space Station Processing Facility high bay at NASA's Kennedy Space Center in Florida, the Orbital ATK CYGNUS pressurized cargo module is secured the KAMAG transporter and the crane has been removed. via NASA http://ift.tt/2lTI4H3

Hubble Showcases a Remarkable Galactic Hybrid

UGC 12591's classification straddles somewhere between a lenticular and a spiral galaxy. It lies just under 400 million light-years from us in the Pisces–Perseus Supercluster. via NASA http://ift.tt/2mTX87x

Pearl Young at Langley's Flight Instrumentation Facility, March 1929

In this March 29, 1929 photograph, Pearl I. Young is working in the Langley Memorial Aeronautical Laboratory's Flight Instrumentation Facility (Building 1202). Young was the first woman hired as a technical employee, a physicist at the National Advisory Committee for Aeronautics and the second female physicist working for the federal government. via NASA http://ift.tt/2lx2zsi

Full-Circle Vista With a Linear Shaped Martian Sand Dune

The left side of this 360-degree panorama from NASA's Curiosity Mars rover shows the long rows of ripples on a linear shaped dune in the Bagnold Dune Field on the northwestern flank of Mount Sharp. via NASA http://ift.tt/2mFkfDS