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Decades-Old Soviet Engines Powered U.S. Rocket that Exploded

The Orbital Sciences rocket that exploded after launch was powered by a pair of rocket engines that were made during the Soviet era and refurbished, experts said.

The Ukrainian-designed AJ-26 engines date back to the 1960s and 1970s, and Aerojet Rocketdyne of Sacramento, California has a stockpile that it refurbishes for Orbital Sciences.

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Plans for Antarctic Marine Reserve Falter Again

A plan to protect a vast swath of ocean off Antarctica by creating the world's largest marine reserve appeared headed for failure for the fourth time.

The countries that make decisions about Antarctic fishing finish a 10-day meeting Friday in Hobart, Australia.

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Plans for Antarctic Marine Reserve Falter again

A plan to protect a vast swathe of ocean off Antarctica's coast by creating the world's largest marine reserve appears headed for failure for a fourth time.

The countries that make decisions about Antarctic fishing will wrap up a 10-day meeting Friday in Hobart, Australia.

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'The Great Invisible' Shows Blood Spilled for Oil

The cameras have left, but tears continue to fall in the Gulf of Mexico, four years after the environmental catastrophe caused by an explosion on British oil giant BP's Deepwater Horizon rig.

In "The Great Invisible", a documentary which won the Grand Jury prize at the South by Southwest (SXSW) festival in Texas, director Margaret Brown shines the spotlight back on the main victims of the disaster.

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Hopes Raised after 'Success' of Koala Chlamydia Vaccine Trial

Australian scientists Wednesday said they had successfully tested a vaccine against chlamydia in wild koalas, in what they believe is a breakthrough in combating the disease ravaging the native marsupial.

The much-loved furry animal has been under increasing threat, with the government classifying it as a vulnerable species amid a plunge in population numbers from habitat loss, disease and other factors.

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Orbital Rocket Explodes after Launch

An unmanned rocket owned by Orbital Sciences Corporation exploded Tuesday in a giant fireball and plummeted back to Earth just seconds after launch on what was to be a resupply mission to the International Space Station.

"The Antares rocket suffered an accident shortly after lift-off," NASA mission control in Houston said, describing the blast at Wallops Island, Virginia, as a "catastrophic anomaly."

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Possible Complete Mammoth Skeleton Found in Idaho

A portion of a Columbian mammoth skull and tusks have been uncovered in Idaho, and experts say a rare entire skeleton might be buried there.

Experts estimate the mammoth was about 16 years old and lived about 70,000 to 120,000 years ago in what was a savanna-like country populated with large plant-eaters and predators.

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Ancient Shipwreck Discovered near Aeolian Islands

The divers descended 410 feet (125 meters) into dark Mediterranean waters off Italy, their lights revealing the skeleton of a ship that sank thousands of years ago when Rome was a world power. A sea-crusted anchor rested on a rock. The ship's cargo lay scattered amid piles of terra cotta jars, called amphora.

Highly trained technical divers with a Florida-based group called Global Underwater Explorers — GUE for short — are helping Italian researchers to unlock an ancient shipwreck thought to date to the second Punic Wars between Rome and Carthage. Able to descend hundreds of feet (meters) further than most divers, they aide the archaeologists by swimming about the wreck fetching artifacts — as no robotic submersible can.

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Arianespace: No Galileo Nav-Sat Launch for December

Space launch operator Arianespace said on Monday that Europe had decided against hoisting two more Galileo geolocation satellites in December following a launch mishap in August.

Two Galileo satellites, part of an orbiting constellation scheduled to completed by 2020, were to have been launched from Kourou, French Guiana, by a Russian Soyuz rocket.

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Troublesome Boat Forces Orbital to Scrub Rocket Launch

Orbital Sciences postponed its planned launch of the Cygnus cargo ship toward the International Space Station on Monday due to a boat in the waters near the Virginia launch pad.

"Tonight's launch of the Antares rocket carrying the Cygnus cargo craft has been scrubbed," a NASA commentator said on the U.S. space agency's live broadcast.

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