1. What is a Solar X-Flare?: Sun's 'Richter Scale' Explained | Video

  2. New Year's Eve Sun Blast Time-Lapsed By NASA | Video

  3. Year of Astronomy Photos Returns Spectacular Views | Video

  4. 52 Quadrantid Meteors Snapped By Photographer | Video

  5. Planet's 'Umbilical Cord' To Star Matter Seen For First Time | Video

  6. Sun Erupts With New Year's Eve Fireworks | Video

  7. January Skywatching: Ancient Constellation, Quadrantid Meteors and More | Video

  8. Astronauts Wish Earth a Happy New Year | Video

  9. Jupiter and Moon Dominate January Night Sky | Video

  10. Mars Rover Curiosity Uses Holiday to Explore 'Yellowknife Bay' | Video

  11. Jewel in the Night: Astronaut's 1st Song in Space | Video

  12. Europe's New Deep-Space Listening Station Rises | Video

  13. SpaceX Grasshopper Makes Highest Hop yet

  14. Winter Storm 'Draco' Seen From Space | Video

  15. Jupiter and The Moon Converge On Christmas | Video

  16. Highest Altitude Supercomputer Installed For Telescope Array | Video

  17. Clues To Creation In California Meteorites? | Video

  18. 'Straggler Stars' Gravitate to Anchor Globular Clusters | Animation

  19. Auroras Over Sweden Inspire Awe | Time-Lapse Video

  20. The Space Frontier | Video

  21. 'Ultramassive' Black Holes: Bigger Than 'Supermassive' | Video

  22. Humans On ISS to Control Robots On Earth | Video

  23. Star's Wobbly Death Spins Shapely Nebula | Video

  24. X-Ray Telescope Nominates 37 Supermassive Black Holes Candidates | Video

  25. 400+ Gemind Meteors Rain Over Ohio | Video

  26. NASA Crashes Twin Spacecraft Into Moon | Video

  27. Why NASA Guided Crash Of Twin Spacecraft Into Moon

  28. NASA Gangnam Style - Music Video Parody With A Purpose

  29. Geminid Meteors Rain In Paradise - Time-Lapse Video

  30. Watch Asteroid Toutatis Tumble Through Space | Video

  31. SPACE.com Fans' Five Favorite Videos of 2012

  32. Secretive Space Plane's Retro-Burn Snapped By Satellite Hunter | video

  33. Why Go Back To The Moon? Retracing The Last Footsteps | Video

  34. Awe-Inspiring Northern Lights Shine Over Sweden | Video

  35. Doomed Moon-Craft Saw Other Lunar Probe | Video

  36. Death Dive For Twin Moon-Craft - Flight Path | Video

  37. First Venus Spacecraft Was Plagued With Problems | Video

  38. World Will Not End On 12.21.12... Really, NASA Says | Video

  39. Auroral Ballet: Arctic Circle's Northern Lights | Video

  40. Mini-Nile River On Titan, Probe Finds

  41. Bingeing Black Hole Belches Brightly

  42. Robot Could Build Lunar Telescope Using Kapton | Video

  43. 3-Mile-Long Asteroid Seen By SLOOH Space Camera | Video

  44. Near Miss! Asteroid Flies Closer Than Moon | Video

  45. NASA Gamma-Ray Telescope Improves Detection Of Thunderstorm Bursts | Video

  46. How Fast Is Earth Losing Its Forests? | Video

  47. 3-Mile-Long Asteroid Snapped By Online Telescope | Video

  48. 3-Mile-Long Asteroid To Fly-By Earth: See the Orbit

  49. How Many Stars In Our Solar System? | Video

  50. Europa Mission A Go In New SciFi Film | Teaser Trailer

  51. 250,000-Mile-Wide Sun Filament Tears Apart | Video

  52. Private Company Wants Bootprints On The Moon By 2020 | Video

  53. Nearby Stellar Nursery Snapped By European Telescope | Video

  54. Back To The Moon For Power? Scientist Says Go! | Video

  55. Galaxy Shot Through Heart Of Another | Video

  56. Earth Night Lights - Unprecedented Detection From Space | Video

  57. Possibly Habitable Super-Earths - Catalog To Date

  58. Earth At Night - Stunning New View From Space | Video

  59. Curiosity's Drill Can Break - Known and Flown Anyway | Video

  60. Green Bean Galaxies Blanched By Monster Black Holes | Video

  61. Curiosity's Sister to Launch to Mars in 2020 | Video

  62. Death Diving Comets Double As Sun Probes | Video

  63. Space Travel Jet Lag - How ISS Astronauts Cope | Video

  64. 3-D Printers On Moon To Print Space Parts? | Video

  65. Voyager Crosses 'Magnetic Super Highway' In Space | Video

  66. Organic Compounds On Mars - Did Curiosity Bring it? | Video

  67. NASA Satellite Sees Earth Breathe | Video

  68. Curiosity Rolling Towards First Drill Into Mars | Video

  69. Polar Ice-Melt Causes Sea-Level Rise, Satellites Find | Video

  70. Watch the 2012 Hurricane Season in 4.5 Minutes | Video

  71. Did The Sun Torch Geminid Meteor Shower's Parent Body? | Video

  72. Geminid Meteors And Visible Asteroids: December Skywatching | Video

  73. Solar Storm Early Warning Array Powers Up | Video

  74. Brown Dwarfs Make Rocky Planets Too? | Video

  75. Galaxy's Giant Jets Reveal Huge Black Hole | Video

  76. Working On Mars Time | Video

  77. Water-Ice On Mercury - How It Was Found | Video

  78. PhoneSat: Small Satellites Use Smart Phones For Brains | Video

  79. Black Hole Jet Looks 2X Milky Way's Diameter | Video

  80. Enormous Vortex On Saturn Snapped By Spacecraft | Video

  81. Super-Giant Black Hole Discovered | Video

  82. Captain Kirk Touts Medical Tech Spun From NASA | Video

  83. Most Powerful Quasar Discovered | Video

  84. Sunspot's Death Throes Unleash Strong Flare | Video

  85. Near-Space Balloon Soars in Flight Test | Video

  86. Curiosity: Mars Missing Methane? | Video

  87. Rocket Sled - NASA Retro-Tech Tests Future Planetary Descents | Video

  88. Satellite Sees Sunspot Grow | Time-Lapse Video

  89. What Did Curiosity Find On Mars? | Exclusive Video

  90. ISS Tour: Cupola, Weightlifting and A Closet Module | Video

  91. ISS Tour: Russian Segment & Soyuz Spacecraft | Video

  92. ISS Tour: Labs, Exercise Bike & Space Suits | Video

  93. A Year Of Lunar Phases And Wobbles | Video

  94. ISS Tour: Kitchen, Bedrooms & The Latrine | Video

  95. Dwarf Planet Makemake Has No Atmosphere | Video

  96. Mojave Desert Bakes Aerospace Geniuses | Video

  97. Photo-Art Time Capsule Will Live As Long As Earth | Video

  98. Thanksgiving Feast In Space - The Menu | Video

  99. Leonid Meteors Flash Over Ohio | Video