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