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The Dietary Guidelines Advisory Committee Report, in February, stated that cholesterol doesn't come as a nutrient of concern for overconsumption.

It brought smiles on the faces of a lot of people as they are expecting once again to fill their bellies with unlimited amounts of butter, cheese, sausage and steak. But at the same time many notable doctors and scientists have balked and protested against it.

David Bowie may have predicted spiders on Mars but there is a possibility that spiders in space might help to get to the red planet.

Tethers Unlimited (TUI), a US private aerospace company, is putting efforts to discover a system of robo spiders that can be helpful in building solar panels, trusses and other parts of spacecraft in orbit. Tethers Unlimited makes research and development of new products and technologies for space, sea and air.

According to the company, it might significantly decrease the price of building spacecraft by enabling the final construction to happen in orbit. Tethers Unlimited is developing the futuristic new system called SpiderFab.

According to scientists, they have developed an inexpensive method of producing hydrogen fuel from abundantly-available corn stover, the stalks, cobs, and husks.

As per the researchers, the biological method for producing hydrogen fuel greatly decreases the time and money it takes to make the zero-emissions fuel. There is a possibility that this discovery might aid to speed up the widespread arrival of hydrogen-powered cars in a method that is cheap and has very low carbon emissions.

The findings have been reported in the Proceedings of the National Academy of Sciences. Professor Percival Zhang, who works at Virginia Tech's Department of Biological Systems Engineering, said that the discovery is an essential step toward a hydrogen economy.

Late Monday, Prime Minister Stephen Harper said that Canada will provide up to $243.5 million over a decade for the Thirty Meter Telescope project.

Experts affirmed that by around 2023, the most powerful optical telescope on earth will start exploring the distant reaches of the galaxy and beyond. Once the telescope is made, it will be in an observatory inside a Canadian-built enclosure.

The telescope will be present at the summit of Hawaii's Mauna Kea volcano. The US$1.5 billion telescope is expected to be operational by 2023-2024. The amount committed by Mr. Harper is equivalent to 15 to 20% share in the project.

The National Aeronautics and Space Administration (NASA) astronaut Scott Kelly has planned to spend about 342 days on the International Space Station (ISS). If Kelly succeeds in his plan, it will be the longest stretch of time any US astronaut has spent in space.

The astronaut lifted off on Friday aboard a Russian Soyuz rocket that was launched from Kazakhstan. As per the United States space agency, the Soyuz rocket docked at the space station at about 9:33 pm.

A new study found that fear of spiders could be among the most common phobias that people face. The study also found that the fear of the creatures could even be the oldest. According to the study, arachnophobia, fear of spiders, is in DNA of humans.

Researchers of the study stated that humans have evolved in Africa and during the humans' evolutionary history, some dangerous spiders had been very common. Many species with potent venoms have been discovered in Africa before hominoids and lived alongside with humans for many years. A bite of black widow spider in the ancestral world could leave a victim incapacitated for a long time.