Rank #1: A Treasure Trove of Planets Found
Seven Earth-sized planets have been observed by NASA's Spitzer Space Telescope around a tiny, nearby, ultra-cool dwarf star called TRAPPIST-1.
Rank #2: Farewell to Saturn: Highlights from the End of NASA's Cassini Mission
On Sept. 15, 2017, Cassini plunged into Saturn, ending its 20-year mission of discovery.
Rank #3: Voyager Images from the Odysseys
Sit back and enjoy the view from the Voyagers' epic journey through the solar system. See iconic images of planets and moons, including Jupiter, Io, Europa, Saturn, Titan, Uranus, Neptune and Triton, set to music.
Rank #4: Sounds of Saturn: Hear Radio Emissions of the Planet and Its Moon Enceladus
New research from the up-close Grand Finale orbits of NASA's Cassini mission shows a surprisingly powerful interaction of plasma waves moving from Saturn to its moon Enceladus.
Rank #5: The Bright Stuff: New NASA Dawn Findings at Ceres
More than 300 bright spots have been located on the surface of Ceres. Scientists with NASA's Dawn mission say the bright material indicates the dwarf planet is an active, evolving world.
Rank #6: Rare Double Asteroid Revealed
Three of the world's largest radio telescopes team up to show a rare double asteroid. 2017 YE5 is only the fourth binary near-Earth asteroid ever observed in which the two bodies are roughly the same size, and not touching. This video shows radar images of the pair gathered by Goldstone Solar System Radar, Arecibo Observatory and Green Bank Observatory.
Rank #7: NASA at Mars: 20 years of 24/7 exploration
No one under 20 has experienced a day without NASA at Mars.
Rank #8: Art of Astrophysics
How do you visualize distant worlds that you can't see? A team of artists uses scientific data to imagine exoplanets and other astrophysical phenomena.
Rank #9: What's Up - October 2017
Planet Pairs, Stellar Superstars, Observe The Moon Night!!
Rank #10: Voyager at 40: Keep Reaching for the Stars
In the late summer of 1977, NASA launched the twin Voyager spacecraft. These remote ambassadors still beam messages back to Earth 40 years later, with data from their deep space travels.