This image of Russian cosmonauts Oleg Kononenko and Anton Shkaplerov, both Expedition 30 flight engineers, was taken during a spacewalk on Thursday, Feb. [Continue]

This artist's impression shows a binary system containing a stellar-mass black hole called IGR J17091-3624, or IGR J17091 for short. The strong gravity of the black hole, on the left, is pulling gas away from a companion star on the right. [Continue]

NASA Administrator Charles Bolden, seated right, and Sen. John Glenn address questions from the press during a briefing at Ohio State University as John Glenn's wife Annie Glenn, seated in red, looks on Monday, Feb [Continue]

Sen. John Glenn and Kennedy Space Center Director Bob Cabana reminisce inside the flight deck of space shuttle Discovery in the Kennedy Space Center's Orbiter Processing Facility-1 [Continue]

John Glenn, standing next to his Friendship 7 capsule in which he made his historic orbital flight, meets with President John F. Kennedy. [Continue]

John Glenn, left, and his wife Annie are seen at a Senior Manager luncheon, Friday, Feb. 17, 2012, inside the Operations Support Building II (OSBII) at NASA's Kennedy Space Center in Cape Canaveral, Fla [Continue]

In this image taken on Jan. 25, 2012, the Aurora Borealis steals the scene in this nighttime photograph shot from the International Space Station as the orbital outpost flew over the Midwest. The spacecraft was above south central Nebraska when the photo was taken. [Continue]

Craters appear well defined on icy Rhea in front of the hazy orb of the much larger moon Titan in this Cassini spacecraft view of these two Saturn moons. [Continue]

NASA Administrator Charles Bolden responds to a reporter's question during an overview briefing on NASA's fiscal year 2013 budget, Monday, Feb. 13, 2012 at NASA Headquarters in Washington [Continue]

This image combines data from four space telescopes to create a multi-wavelength view of all that remains of RCW 86, the oldest documented example of a supernova. Chinese astronomers witnessed the event in 185 A.D., documenting a mysterious "guest star" that remained in the sky for eight months [Continue]