CAPE CANAVERAL, Florida (Reuters) - Voyager 1, launched in 1977 to explore the outer planets, has passed into a new region on its way out of the solar system, scientists said on Wednesday. Full story
NASA's Voyager 1 spacecraft — the farthest-flung object created by human hands — has traveled beyond the sun's sphere of influence and may even have left the solar system forever, a new study suggests. Full story
It's Nicolaus Copernicus' 540th birthday, and Google marked the day with a lovely medieval model of the heliocentric solar system. Why? Because Copernicus was the first person to say what every kindergartner now knows: "The Earth goes around the sun."Fun fact: Copernicus pulled … Full story
Pairs of stars with separations five hundred times the size of the solar system could be triplets in disguise. New research indicates that many of the known wide binaries (double star systems) may have once contained three stars, and many could still harbor a third. Full story
Leaders of the B612 Foundation explain their plan to launch the first privately funded deep-space mission, aimed at mapping the inner solar system. Credit: B612 Foundation
Obama capitalizes on gay marriage endorsement; Romney apologizes for high school pranks; JPMorgan Chase loses $2 billion; Syria suicide bombers kill dozens in Damascus; Prosecution rests in Edwards trial; Bee deaths linked to pesticides; Asteroid Vesta gives clues about solar system; Rosa Parks scul
Astrophysicist Neil deGrasse Tyson speaks with TODAY’s Matt Lauer about the whether human life could really be relocated to another planet outside our solar system.
See some of our solar system's greatest sights, as captured in "Planetfall: New Solar System Visions," a large-format book by Michael Benson.
epa03436601 A wide-field view of the sky around the bright star Alpha Centauri was created from photographic images forming part of the Digitized Sky Survey 2. The star appears so big just because of the scattering of light by the telescope's optics as well as in the photographic emulsion. In a pape
An artist's concept of the heliosphere, a magnetic bubble that partially protects the solar system from cosmic rays.
An alien artifact like the Voyager probes' "golden record," which contains coded information about Earth as well as recordings of earthly sights and sounds, would elude our attention if it were in our solar system. In fact, we might not even detect the Voyager probes.