• Shallow depression called 'Yellowknife Bay.'

    Curiosity Rover Explores 'Yellowknife Bay'

    12.18.12 - The NASA Mars rover Curiosity this week is driving within a shallow depression called "Yellowknife Bay," providing information to help researchers choose a rock to drill.

  • Saturn

    From Cassini for the Holidays: A Splendor Seldom Seen

    12.18.12 - Just in time for the holidays, NASA’s Cassini spacecraft, in orbit around Saturn for more than eight years now, has delivered another glorious, backlit view of the planet Saturn and its rings.

  • Artist's concept of NASA's twin GRAIL spacecraft

    NASA GRAIL Twins Complete Their Moon Impact

    12.17.12 - Engineers at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., have received confirmation that the twin GRAIL spacecraft have, as planned, completed their impact into the moon.

  • Still image from GRAIL animation with an inset photo of Sally Ride

    NASA's GRAIL Lunar Impact Site Named for Sally Ride

    12.17.12 - NASA has named the site where twin agency spacecraft impacted the moon Monday in honor of the late astronaut Sally K. Ride, who was America's first woman in space and a member of the probes' mission team.

  • This still image and animation shows the final flight path for NASA's twin Gravity Recovery and Interior Laboratory (GRAIL) mission spacecraft, which will impact the moon on Dec. 17, 2012, around 2:28 p.m. PST.

    NASA to Provide Commentary as Grail Moon Mission Ends

    12.14.12 - NASA will provide live commentary of the scheduled lunar surface impacts of its twin Gravity Recovery and Interior Laboratory (GRAIL) spacecraft beginning at 2 p.m. PST (5 p.m. EST) Monday, Dec. 17.

  • Artist's concept of NASA's twin GRAIL spacecraft

    Rocket Burn Sets Stage for Dynamic Moon Duos' Impact

    12.14.12 - The lunar twins of NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission have each completed a rocket burn that has sealed their fate.

  • Asteroid Toutatis

    Asteroid Toutatis Slowly Tumbles by Earth

    12.14.12 - Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have generated a series of radar data images of a three-mile-long (4.8-kilometer) asteroid that made its closest approach to Earth on Dec. 12, 2012.

  • MMS Observatory 2 following installation of the instrument deck onto the spacecraft structure in the early hours of December 11, 2012.

    Instrument Deck Installed on MMS Observatory #2

    12.13.12 - Installation of the instrument deck is complete on the second of four MMS observatories, which are being assembled at NASA’s Goddard Space Flight Center in Greenbelt, Md.

  • This still image and animation shows the final flight path for NASA's twin Gravity Recovery and Interior Laboratory (GRAIL) mission spacecraft, which will impact the moon on Dec. 17, 2012, around 2:28 p.m. PST.

    NASA Probes Prepare for Mission-Ending Moon Impact

    12.13.12 - Twin lunar-orbiting NASA spacecraft that have allowed scientists to learn more about the internal structure and composition of the moon are being prepared for their controlled descent and impact on a mountain near the moon's north pole at about 2:28 p.m. PST (5:28 p.m. EST) Monday, Dec. 17.

  • Image of 2012 Quadrantid meteor shower over the Florida Keys. Photo copyright Jeff Berkes, all rights reserved. Used with permission.

    Quadrantids Create Year's First Meteor Shower

    01.03.12 - Named after an extinct constellation, the Quadrantids presented an excellent chance to start 2013 with some meteor watching.