SUNSET: 
Voyager 2's Lucky Day
Thirty years ago, on August 20, 1977, Voyager 2 left Earth and began its conquest of the outer solar system. Had it not been for the luck of the draw, this historic mission would have turned out very differently.
One Less "Possibility of Life"?
Just because Saturn's moon Enceladus has active geysers doesn't mean it harbors alien life. That's the take-home message from an upcoming scientific paper.
Risky Business
Two American collectors manage — barely — to get in and out of Colombia with fragments from a fresh meteorite fall.
Do Sunspots Cycles Forecast the Rain?
A team of researchers claim that sunspot activity might accurately forecast rain in Africa.
Do Sunspots Forecast the Rain?
A team of researchers claim that sunspot activity might accurately forecast rain in Africa.
Phoenix Heads to Mars
Rising from the ashes of a mission to Mars that disappeared without a trace in 1999, the Phoenix spacecraft is on its way to the Red Planet.
Understanding Saturn's G Ring
Astronomers might have found the source for Saturn's mysterious G ring.
Comet Discoverers Awarded
This year's Edgar Wilson Award went to three unique amateur comet discoverers.
Is a New Moon News?
Thanks to the latest find by the Cassini spacecraft, we now know that Saturn has 60 satellites circling it.
The End of the Rovers?
The dust clouds on Mars are blocking out so much sunlight that the Mars Exploration Rovers may not survive until the storm blows over.
The Walnut-Shaped Moon
Scientists now think they know why Saturn's moon Iapetus has its distinctive nutty character.
Ice Volcanoes Everywhere?
Pluto's largest moon, Charon, might be the latest solar system body with active geysers on its surface.
A Ringside View of Uranus
Astronomers have assembled an armada of telescopes to observe Uranus in a way that hasn't been possible since the 1960s.
Martian Dustup Has an Impact
As a storm rages in Mars's atmosphere, two rovers on the surface and three orbiters above wait for the dust to settle.
Mars Pole Bound — Again
NASA is set to launch its latest Mars mission, the Phoenix lander, as early as August 3rd.
Dawn's Liftoff Delayed to September
When delays narrowed the spacecraft's July launch window to just a few days, NASA managers decide to wait two months.
Return of the Sponge Moon
Back in 2005 we reported why Hyperion had a sponge-like appearance. Turns out that our old story is dead wrong!
Let's Hope Dawn Doesn't Break!
When NASA's Dawn spacecraft leaves Earth behind on Sunday, it'll begin an 8-year asteroid-hopping adventure.
What a Difference a Decade Makes
It's been a decade since Mars Pathfinder touched the surface of Mars and heralded a new era of Martian exploration.
Ceres: The Wet Look
Mounting evidence suggests that the largest asteroid is hiding a large cache of water ice beneath its surface.
