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Astronauts aboard the International Space Station released Space Exploration Technologies' unmanned Dragon cargo ship on Thursday, one of the final milestones in a pioneering mission for commercial firms seeking a major role in space travel.

Space station astronauts floated into the Dragon on Saturday, a day after its heralded arrival as the world's first commercial supply ship.

Space Exploration Technologies Corporation has made history as the first private company to send a spacecraft to the space station.

A new era in space exploration dawned Tuesday as a slender rocket powered into the dark Florida sky before sunrise, carrying the first private spacecraft bound for the International Space Station. "We're now back on the brink of a new future, a future that embraces the innovation the private sector brings to the table," NASA Administrator Charles Bolden said. "The significance of this day cannot be overstated."

Some people seem born under an unlucky star. But some stars are equally unlucky themselves. Astronomers have spotted a star in another galaxy plunging toward a giant black hole and being ripped to shreds, sparking a flare so brilliant that observers detected it from a distance of 2.1 billion light-years.

A sonic boom heard in California last week had an out-of-this world origin as ”a large meteoric event” according to NASA’s Meteoroid Environment Office. Scientists now estimate the blast measured in near 5 kilotons or roughly 1/3 the power of the atomic bomb dropped on Hiroshima, Japan during World War II. Bill Cooke of the Meteoroid Environment Office at NASA’s Marshall Space Flight Center, estimates the object was about the size of a minivan, weighed in at around 154,300 pounds.

Less than a year after NASA ended its shuttle program, players in America's space business are casting around for new direction.

Meet Amun 3554... Little more than a mile wide, it's one of the smallest M-class (metal-bearing) asteroids yet discovered... So, the total payout from one unassuming asteroid? $20,000,000,000,000. That’s what got Planetary Resources co-founder Peter Diamandis so excited. “There are $20 trillion checks up there waiting to be cashed,” he enthused at a space development conference in 2006.

A star already known to host five alien planets may actually be home to a whopping nine full-fledged worlds - a planetary arrangement that, if confirmed, would outnumber our own solar system and set a new record for the most populated system of extrasolar planets yet found.

A group of high-tech tycoons wants to mine nearby asteroids, hoping to turn science fiction into real profits. The plan is to use commercially built robotic ships to squeeze rocket fuel and valuable minerals like platinum and gold out of the lifeless rocks that routinely whiz by Earth. One of the company founders predicts they could have their version of a space-based gas station up and running by 2020.