Back to the future with Neptune’s fascinating moon Triton

On the anniversary of Voyager 2's encounter with Neptune and Triton ... an awesome collection of restored Voyager 2 images, plus the link between Triton and Pluto.

Longest lunar month of 2014 starts on August 25

The longest lunar month of 2014 starts with the August 25 new moon and ends September 24. All you need to know about the varying lengths of the lunar months, here.

Your toothpaste’s fluorine was formed in a star

Next time you're brushing you teeth, think on this: New research suggests that the fluorine in your toothpaste originates from the sun’s dead ancestors.

New Voyager map reveals Neptune’s strange moon Triton

New map from a 1989 spacecraft flyby gives us a glimpse of an unseen world.

Wow! Spectacular landscape of star formation

New image of star-forming regions in southern Milky Way. Star cluster NGC 3603 is 20,000 light-years away. Glowing gas clouds NGC 3576 is about half as far.

Curiosity rover is having wheel problems

Mission planners didn't anticipate that Curiosity would be driving over an area on Mars that has sharp, pyramid-shaped rocks embedded in hard ground.

Strange case of M82 X-1: A rare midsize black hole

A black hole candidate known as M82 X-1 appears to have a mass of about 400 suns, making it one of only half a dozen suspected midsize black holes.

Video: Our Curiosity

A video love letter to the Curiosity rover on Mars, narrated by Neil DeGrasse Tyson and Felicia Day.

New video of Pluto and giant moon Charon

NASA's Pluto-bound New Horizons spacecraft created this new video of stills taken of the Pluto-Charon system over five days last month.

First dust grains from beyond our solar system

A collector dropped to Earth by the Stardust spacecraft may have contained the first known contemporary dust grains from outside our solar system.