Science/Technology

GENEVA (AP) — Physicists are closing in on an elusive subatomic particle that, if found, would confirm a long-held understanding about why matter has mass and how the universe's fundamental building blocks behave.

Few people outside physics can fully comprehend the search for the Higgs boson, which was first hypothesized 40 years ago. But proving that the "God particle" actually exists would be "a vindication of the equations we've been using all these years," said one Nobel laureate.

Scientists announced Tuesday that they had found hints but no definitive proof of the particle that is believed to be a basic component of the universe. They hope to determine whether it exists by next year.

The International Space Station is a huge floating lab where everything on board is a science experiment, including the crew.

A newly discovered planet is eerily similar to Earth and is sitting outside our solar system in what seems to be the ideal place for life. The planet's confirmation was announced Monday by NASA along with other Kepler telescope discoveries.

CAPE CANAVERAL, Fla. (AP) — The world's biggest extraterrestrial explorer, NASA's Curiosity rover, rocketed toward Mars on Saturday on a search for evidence that the red planet might once have been home to itsy-bitsy life.

It will take 8½ months for Curiosity to reach Mars following a journey of 354 million miles.

An unmanned Atlas V rocket hoisted the rover, officially known as Mars Science Laboratory, into a cloudy late morning sky. A Mars frenzy gripped the launch site, with more than 13,000 guests jamming the space center for NASA's first launch to Earth's next-door neighbor in four years, and the first send-off of a Martian rover in eight years.