July 23, 2013
Images of Earth taken by two NASA interplanetary spacecraft on July 19 show our planet and its moon as bright beacons from millions of miles away in space.
July 21, 2013
Saturn's giant moon Titan is dotted with hydrocarbon lakes and seas that bear an uncanny resemblance to bodies of water on Earth. Strangely, though, on Titan there are no waves. In this week's story, planetary scientist Alex Hayes discusses the mysterious flatness of Titan's liquid bodies and predicts a sea-change in the near future.
July 17, 2013
Consider it the first interplanetary photobomb. On July 19th, NASA's Cassini spacecraft will photograph Earth through the rings of Saturn--and NASA wants you to jump into the shot.
July 15, 2013
NASA's Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune, the 14th known to be circling the giant planet.
July 15, 2013
Drinking coffee in space is surprisingly tricky. Physicists researching the strange behavior of fluids onboard the International Space Station have invented a zero-g coffee cup to make the morning "cuppa Joe" a little easier to swallow.
July 11, 2013
Astronomers working with NASA's Hubble Space Telescope have deduced the actual color of a planet orbiting another star 63 light-years away. The planet is HD 189733b, and its color is cobalt blue. If seen directly, this planet would look like a deep blue dot, reminiscent of Earth's color as seen from space.
July 10, 2013
Like a comet, the solar system has a tail. NASA's Interstellar Boundary Explorer (IBEX) has for the first time mapped out the structure of this tail, which is shaped like a four-leaf clover.
July 1, 2013
When Opportunity left Earth in 2003, many observers expected the rover to survive no more than a few months on the hostile surface of Mars. 10 years later, Opportunity is still going strong and could be poised to make its biggest discoveries yet at a place named Solander Point.
June 27, 2013
Three new papers published in today's issue of Science suggest that Voyager 1, now more than 18 billion kilometers from the sun, is closer to becoming the first human-made object to reach interstellar space.
June 24, 2013
The count of known asteroids and comets that can come close to Earth continues to mount. The 10,000th near-Earth object, asteroid 2013 MZ5, was detected on June 18, 2013, by the Pan-STARRS-1 telescope.