Periods of high solar activity create features that make the sun appear to have bigger "love handles," according to a new study of the star's true shape.
A hiker in eastern California found an ID and other items belonging to Steve Fossett, the adventurer who vanished on a solo flight more than a year ago, authorities said Wednesday.
The virus first appeared at least three decades before researchers had thought, and it may have been triggered by rapid urbanization in west-central Africa during the early 20th century.
The ESA's Jules Verne spacecraft reenters Earth's atmosphere, the Circinus galaxy appears in a composite image, and more in our weekly roundup of space photos.
NASA's Phoenix Mars Lander has detected snow falling from Martian clouds, and its soil testing shows further evidence of the planet's watery past, scientists say.
A mechanical failure on board the space telescope caused transmissions to cease, forcing a delay of the final servicing mission possibly until next January, NASA officials said.
A dust cloud surrounding a nearby star 300 light-years from Earth may be all that remains from the collision of two Earth-size planets, researchers say.
The Phoenix Mars Lander recorded ice crystals coming from clouds and found evidence of soil minerals that support Mars's history as a watery world, researchers announced.
