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Creating reusable rockets that can land and relaunch is considered a major technological milestone that will significantly lower the cost of space travel.

The big one of the 2015 NBA Christmas schedule is the first rematch of the NBA Finals, as LeBron James takes a fully healthy Cleveland Cavaliers team to play on the road against Stephen Curry and the Golden State Warriors, who have lost just once this season.

Amazon’s founder and owner of space privateer firm Blue Origin, Jeff Bezos, decided that Elon Musk’s big moment – vertically landing the 48m SpaceX Falcon 9 rocket after delivering satellites into orbit – was too good a moment to pass up the opportunity...

All seemed fixed until Monday when testing in extreme cold temperatures (-49 degrees Fahrenheit/-45 degrees Celsius) found the instrument again failed to hold a vacuum.

If the user employs similar password over their accounts (a number of studies have discovered that they do), or access job-related portals from home, the hackers can pounce on their their targets via those gateways. “As (a) part of this effort, Yahoo will now notify you if...

Vader can take comfort in the fact that he is not alone in struggling to prove that his legal name was inspired by a franchise so powerful that it feels like half of Earth has already seen the new Star Wars movie.

People dressed as Santa Claus gather in Brooklyn’s McCarren Park during the SantaCon 2015 in New York City December 12, 2015, the 21st anniversary of the event that sees hundreds of people dress as Father Christmas.

But U.S. Strategic Command put the conjecture to rest when it announced the light was caused by a Russian SL-4 rocket re-entering the atmosphere over Arizona about 7:08 p.m. MT. There are possibilities that the rocket’s body detached when it was taking items to the space,...

This time around, the moon will reach its peak size in the U.S.at 6:11 a.m. ET on Christmas morning, according to NBC News. The full moon, which is the last of the year, is called the Full Cold Moon because it occurs at the start of winter.

Roderick Bobbitt, Hawai’i: Bobbitt shot extremely well in scoring 30 points in a win over Auburn, shooting 8-for-13 from the field and 8-for-8 from the foul line.

Forecasters expect the low temperature will range from 46 to 50 degrees. In fact, temperatures are forecast as high as 59 degrees Fahrenheit in Toronto and 75 degrees in Washington.

The adoption of the Global Climate Change Agreement (COP21) means nations now have between April 22, 2016 and April 21, 2017 to adopt the agreement as per their domestic legal frameworks.

Given this started happening in the past few minutes on Christmas Day, surely Half-Life developer Valve – Steam’s overlord – didn’t deploy a change over the festival weekend?

Russian Federation has been carrying out airstrikes in Syria for weeks. The second conclusion, equally important, is that Russian authorities may have lied about the fact they have been only targeting terrorists.

A leaking instrument has led NASA to suspend its next planned mission to Mars that was set to launch March 2016.