07/05/2009

Refined Hubble Constant narrows explanations for dark energy

Whatever dark energy is, explanations for it have less wiggle room following a Hubble Space Telescope observation that has refined the measurement of the universe's present expansion rate to a precision where the error is ...

Meet DNA's personal assistants

Just as scientists finished sequencing the human genome, they got a new surprise. Inside the genetic pathway, where DNA produces proteins to sustain life, they found microRNA. These tiny ubiquitous molecules have opened a ...

Disappearing act of world's second largest fish explained

Researchers have discovered where basking sharks - the world's second largest fish - hide out for half of every year, according to a report published today in Current Biology. The discovery revises scientists' understanding ...

Honeybees are on the rise but demand grows faster

The notion that a decline in pollinators may threaten the human food supply - producing a situation that has been referred to as a "pollination crisis" - can be considered a myth, at least where honey bees are concerned, ...

Visualizing virus replication in three dimensions

Dengue fever is the most common infectious disease transmitted by mosquitoes - some 100 million people around the world are infected. Researchers at the Hygiene Institute at Heidelberg University Hospital were the first to ...

Entomologists seek fungus to blunt mosquitoes' sense of smell

Sick people often lose their sense of smell and their appetite. If this happened to mosquitoes, they would not be able to feed on humans and spread malaria. A team of Penn State entomologists is looking for an insect disease ...

Why silkworms find mulberries attractive

A new study published online on May 7th in Current Biology, a Cell Press publication, has found the source of silkworms' attraction to mulberry leaves, their primary food source. A jasmine-scented chemical emitted in small ...

Researchers study the idling brain

Oregon Health & Science University researchers, along with scientists at Washington University in St. Louis, are uncovering new information about the mind by studying the brain while it is at rest. It is believed this research ...

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