Satya Nagendra Padala

Antimatter is one of the most promising fuels for future space travel. However, there are several technical hurdles to be overcome before an antimatter rocket can be built.

Researchers found for the first time that a band of antiprotons have been ringing around Earth, adding to the theory that antimatter could be trapped in Earth?s magnetic field.

Sky-watchers and astronomers witnessed a spectacular display of natural lights on Friday caused by the strong solar flare that occurred on Aug 2, 2011.

China, the largest creditor of the world's sole superpower, hit out at the United States for its "debt addiction" and "short sighted" political wrangling in response to Standard & Poor's historic decision to downgrade the U.S. credit rating from AAA.

A severe solar storm could cause global chaos, wrecking satellite communications and would take down the most important power grids in the world for a period of years.

A series of solar flares that erupted on the Sun over the last three days have crossed the solar system and hit the Earth's magnetic field on Friday afternoon.

The companies whose shares are moving in pre-market trade on Friday are: CF Industries Holdings, PG&E, Freeport-McMoRan Copper, Merck & Co, TECO Energy, First Solar, eBay, Nvidia, Halliburton and Regions Financial Corp.

Scientists have found new evidence of possible salt water flows on Mars, which could lead to traces of life being found on the red planet.

U.S. stock index futures point to a lower opening on Friday as investors are cautious ahead of key U.S. monthly non-farm payrolls and unemployment data from the government.

The U.S. stock market had a mini-meltdown on Thursday ahead of Friday's all-important Bureau of Labor Statistics (BLS) jobs report as fears about the global economy slipping into another recession weighed on the sentiment.

A series of solar flares that erupted in the Sun over the last three days are heading towards Earth and could disrupt power grids and satellites.

Scientists believe that they may be able to finally explain why the two sides of the lunar body are so different from each other. A new study published in the journal Nature has suggested that Earth originally had two moons in orbit around it until a second moon flattened itself to the bigger moon more than 4 billion years ago.

Carbon dioxide and other air pollution that is collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Over the past 50 years the average global temperature has increased at the fastest rate in recorded history and experts think the trend is accelerating.

The companies whose shares are moving in pre-market trade on Thursday are: Kraft Foods, CIGNA, Teradata, NYSE Euronext, Davita, Tiffany, Alpha Natural Resources, Northrop Grumman, Carnival, Freeport-McMoRan Copper & Gold and United States Steel Corp.

Among the mysteries lying on the far side of the Moon are why it has a thick mountainous crust, while the near side which we see has low-lying lava plains and a much thinner crust than the far side. Scientists believe they may be able to finally explain the moon's asymmetry.

A team of Swedish sea treasure hunters has found something extraordinary on the sea bed, prompting speculation that the wreckage is that of a crashed flying saucer.

The companies whose shares are moving in pre-market trade on Wednesday are: SuccessFactors, Genworth Financial, Juniper Networks, Rockwell Automation, MasterCard, Fiserv, Frontier Communications, Archer Daniels Midland, Urban Outfitters, Marathon Oil and Thor Industries.

A piece of the space shuttle Columbia, which broke into pieces over the Texas skies on February 1, 2003, has been found in a Texas lake after a drought caused the waters to recede.

The top after-market NYSE losers on Tuesday are: Ion Geophysical, Boston Beer Co, HFF, Orbitz Worldwide, Emdeon, Buckeye Technologies, Calgon Carbon, Arcos Dorados Holdings, Thor Industries and MetroPCS Communications.

The top after-market NYSE gainers on Tuesday are: Willbros Group, SuccessFactors, Zale Corp, Orient-Express Hotels, Pilgrim's Pride Corp, Modine Manufacturing, Quanex Building Products, KBW, Harris Corp and United Rentals.

Astronauts looking for a breath of fresh air have to invariably return to Earth. However, there is now the second option of traveling some 1,500 light years to the Orion Nebula, where oxygen molecules have been detected for the first ever time in space.

The companies whose shares are moving in pre-market trade on Tuesday are: American Tower, Cognizant Technology Solutions, Chesapeake Energy, Duke Energy, Hasbro, MetroPCS Communications, Archer Daniels Midland, FMC Corp, United States Steel, Target Corp and Molson Coors Brewing Co.

The top after-market NYSE gainers on Monday are: Herbalife, McClatchy, Hanger Orthopedic Group, Dice Holdings and Molina Healthcare Inc. The top after-market NYSE losers are: Ferro Corp, General Cable, Graphic Packaging Holding, CH Energy Group and Banco Latinoamericano de Comercio Exterior.

The world population is expected to breach seven billion this year, which is more than twice the number of people that lived on the earth just 50 years ago, according to recent projections by the United Nations. Is the world prepared for it?

Scientists have long debated what caused the Neanderthals to die off. A new study has suggested that a flood of prehistoric humans pouring into Europe inundated our ancient rivals and overwhelmed them with sheer force of numbers.

The top after-market NYSE Losers on Friday are: Kindred Healthcare, Skilled Healthcare Group, Five Star Quality Care, Brookdale Senior Living, TAL Education, Standard Motor Products, Omnicare, Sunrise Senior Living, Molina Healthcare and Titanium Metals.

The top after-market NYSE gainers on Friday are: Dynegy, Unifi, iSoftStone Holdings, Orbitz Worldwide, Terex, Crexus Investment, Miller Petroleum, Gildan Activewear, HSBC Holdings and MEMC Electronic Materials.

The companies whose shares are moving in pre-market trade on Friday are: Expedia, Newell Rubbermaid, Cerner, Noble Energy, Chesapeake Energy, Macy's, Motorola Mobility Holdings, Newmont Mining, TJX Companies and Emerson Electric Co.

Archaeopteryx, the legendary winged creature which was long considered the Earth's oldest and most primitive bird, might not have been a bird at all, according to Chinese scientists.