Pluto
Pluto's Best Portrait Yet Reveals Complex World, Surface Features
NASA published its most detailed image yet, taken one day before the flyby. Even better images are still to come.
Watch: New Horizon Spacecraft's Historic Pluto Flyby Countdown
NASA is set to make history shortly after 7:30 a.m. on Tuesday when the New Horizons spacecraft zooms past Pluto.
Before the Pluto Flyby: What Has New Horizons Seen So Far?
From launch to the scheduled flyby on July 14, New Horizons has sent back images of Jupiter and its moon Io, Neptune, and now Pluto and its moon Charon.
Two Numbers: Pluto Gets Its First Close-Up
NASA's New Horizons probe is scheduled to make its historic flyby past the dwarf planet this summer.
NASA Releases Video of Flyby of Dwarf Planet Ceres
NASA released a new video simulating a fly by of Ceres, based on images taken by its Dawn spacecraft.
Two Planets Larger Than Earth May Exist Beyond Pluto
Astrophysicists cite orbit patterns, but some critics are not yet ready to believe.
NASA Begins Countdown to Pluto Flyby
The New Horizons spacecraft, carrying the ashes of its discoverer and other curious itemf, begins its encounter with the Pluto system.
The Year Ahead in Space: What's Next?
In 2015, we'll get our first close look at our favorite former planet, Pluto, learn more about Mars, and get a look at two total eclipses.
Top Science Breakthroughs of 2014: Rosetta Tops Science Magazine's List
Which discoveries changed the game in 2014?
