 |

Curious About Life: Interview with Roger Summons
The Mars Science Laboratory Curiosity rover has 10 science instruments, and each will be used in the coming weeks and months to help characterize the environment of Mars and determine if the planet ... more
|  |

Life on Mars: NASA says 'hold on a minute!'
When a NASA official said last week data from an instrument on the Mars Curiosity rover suggested something "for the history books," many people thought an announcement was imminent of the possible discovery of life on the Red Planet - until the space agency began to seriously backpedal on the story. ... more
|  |

Solar Minimum; Solar Maximum
The sun goes through a natural solar cycle approximately every 11 years. The cycle is marked by the increase and decrease of sunspots - visible as dark blemishes on the sun's surface, or photosphere ... more
|  |

Cassini Finds a Video Gamers' Paradise at Saturn
You could call this "Pac-Man, the Sequel." Scientists with NASA's Cassini mission have spotted a second feature shaped like the 1980s video game icon in the Saturn system, this time on the moon Teth ... more
|