 |

How Do We Know When Voyager Reaches Interstellar Space?
Whether and when NASA's Voyager 1 spacecraft, humankind's most distant object, broke through to interstellar space, the space between stars, has been a thorny issue. For the last year, claims have s ... more
|  |

Detecting Biomarkers on Faraway Planets
On Earth, life leaves tell-tale signals in the atmosphere. Photosynthesis is ultimately responsible for the high oxygen levels and the thick ozone layer. Microbes emit methane and nitrous oxide into ... more
|  |

Effects of space weather studied in communication satellite outages
Space weather could be affecting satellites providing much of the world's access to television, the Internet and global communications, U.S. scientists say. ... more
|  |

Take a Virtual, High-Resolution Tour of Vesta
An atlas of the asteroid, Vesta, created from images taken during the Dawn Mission's Low Altitude Mapping Orbit (LAMO), is now accessible for the public to explore online. The set of maps has been c ... more
|