SUNSET: 
Scientists Find Ancient Lake on Mars
Scientists have discovered an ancient lakebed on Mars.
Sunspots and Climate Change, Naming Exoplanets, and More from the IAU
Do sunspots affect climate change? How can you name an exoplanet? Here are the latest results from the world's largest astronomy conference.
Shedding New Light on Near-Earth Asteroids
Students captured some amazing videos of near-Earth asteroids this past month, demonstrating a powerful tool for learning about some of our nearest celestial neighbors.
Alan Stern: What We Found at Pluto
It sounds like science fiction, but it's not: NASA's New Horizons mission explored the Pluto system this summer!
Dawn Sees Ceres Bright Spots and More
New results from the Dawn orbiter show bright spots, a pyramid-shape mountain, and mysterious haze on the dwarf planet Ceres.
Dramatic Features in Pluto Close-Ups
New images from NASA's New Horizons spacecraft reveal a bewildering array of geologic features — all carved by or into exotic ices — on the surface of Pluto.
(Unofficially) Naming Pluto
Amidst all the excitement of seeing Pluto’s unique features for the first time, NASA researchers have been using unofficial names to talk science until official terms come down the pipeline.
The Frozen Plain of Pluto
New images from NASA's New Horizons spacecraft reveal an ice-covered plain on Pluto that looks remarkably young and fresh.
Pluto and Charon Dazzle with Diversity
In a mission filled with surprises, New Horizons spacecraft has left its scientists awed by the array of landforms and compositions found on Pluto and Charon.
New Horizons Scans Pluto as Earth Awaits
New Horizons flew past Pluto and its moons earlier today, but the spacecraft stayed out of contact with Earth while finishing its historic observations.
New Horizons Buzzes Pluto
NASA’s New Horizons spacecraft whizzed by Pluto this morning just before 8 a.m. EDT at nearly 14 km/s (31,000 mph), about 12,500 km (7,750 miles) above the surface.
Pluto and Charon: The Odd Couple
With just one day remaining until New Horizons makes its historic flyby, missions scientists are amazed by the views of Pluto and Charon already in hand.
Naming Pluto’s Features
How will planetary scientists decide what to call the features they discover on Pluto and its moons?
Glimpsing Pluto’s Curious Equator
Here’s a taste of what New Horizons hopes to resolve when it passes by Pluto next Tuesday, July 14th.
New Horizons Hiccups, Goes into Safe Mode
Just 10 days before its history-making flyby of Pluto and its moons, NASA's New Horizons spacecraft briefly lost communication with Earth.
SOFIA Dashes into Pluto's Shadow
Despite an 11th-hour scramble due to an unexpected in predictions, NASA's flying observatory was in the right place at the right time on June 29th as distant Pluto briefly covered a 12th-magnitude star.
Rosetta Spots Sinkholes on Comet
The spacecraft orbiting Comet 67P/Churyumov-Gerasimenko has found 18 holes in the nucleus's surface.
Do We Need "Asteroid Day"?
Are we really doing enough to find asteroids, especially the smaller ones that could destroy a city? A private initiative urges a rapid ramp-up of the search effort — but not everyone agrees.
Volcanoes on Venus: Active or Not?
Hotspots on Venus might be researchers’ long-sought evidence for active volcanoes.
The Moon’s Mysterious Twilight Dust Clouds
Observations from NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) have rekindled interest in dust clouds seen along the Moon’s day-night terminator.
