Common DNA modifications occur through methylation, a chemical process that can dramatically change gene expression, which regulates the eventual production of proteins that carry out the functions of an organism. 

DNA encodes genetic information in its chemical bases: adenine, cytosine, guanine, and thymine. Methylated cytosine is the dominant DNA modification found in eukaryotes, a taxonomical classification that includes mammals, insects, worms, plants, and algae, but new papers have identified an adenine DNA methylation that also epigenetically regulates cellular function in green algae, worms, and flies.

On March 17th, 2013, an object the size of a boulder hit the lunar surface in Mare Imbrium and exploded in a flash of light nearly 10 times as bright as anything ever recorded before - the largest recorded explosion occurred on the surface of the moon.

A common black fungus, Aspergillus carbonarius ITEM 5010, found in decaying leaves, soil and rotting fruit has been used to to create hydrocarbons, the chief component of petroleum, similar to those in aviation fuels. The fungus produced the most hydrocarbons on a diet of oatmeal but also created them by eating wheat straw or the non-edible leftovers from corn production.

Fungi have been of interest for about a decade within biofuels production as the key producer of enzymes necessary for converting biomass to sugars. Some researchers showed that fungi could create hydrocarbons, but the research was limited to a specific fungus living within a specific tree in the rainforest, and the actual hydrocarbon concentrations were not reported.

A majority of American adults have tried dieting to lose weight at some point in their lives, and at any given time, about one-third of the adult population say they're currently dieting, which is why diet books are the one consistent think about the New York Times bestseller list. Yet 60 percent of American adults are overweight or even obese and more than 16 percent of deaths nationwide are linked to that. 

There are plenty of misunderstandings and sometimes they get regurgitated into new forms, like that sugar is toxic or bread is bad for your brain. It can get a little confusing so Johns Hopkins physicians have shed some light on what is well-worn myth and what is fiction and what is in between.

Belief: Eating too much sugar can cause diabetes

Scientists have successfully imaged thunder for the first time.

A team from Southwest Research Institute has visually captured the sound waves created by artificially triggered lightning, they reported at a joint meeting of American and Canadian geophysical societies in Montreal.

Although people see it as a flashing bolt, lightning begins as a complex process of electrostatic charges churning around in storm clouds. These charges initiate step leaders, branching veins of electricity propagating down, which subsequently lead to a main discharge channel. That channel opens a path to nearly instantaneous return strokes, which form the lightning flash as we see it.