PCC STEM's Posts

Scientists have developed a way to switch fluorescent molecules on and off within aqueous environments, by strategically trapping the molecules inside water-soluble particles and controlling them with ultraviolet light.
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A new video article describes a novel technique to study the interactions between HIV-1 and P. falciparum in cultured human cells, will allow scientists to explore different parameters of co-infection by the two microbes.
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Researchers may finally have discovered why people with sickle cell disease get milder cases of malaria than individuals who have normal red blood cells. In a finding that has eluded scientists for years, the researchers discovered that genetic material in red blood cells may help alter parasite activity via a novel mechanism that alters parasite gene regulation.
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Scientists have made valuable findings in the search for cancer's cure. While researching ways to improve animal health, the scientists have made two important discoveries that can also improve human health. Not only have they found pigs with severe combined immunodeficiency but they are also the first to discover the connection with human cancer, particularly melanomas and pancreatic cancers.
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A rare large-scale attempt to simulate volcanic eruptions will provide much-needed insight into one of Earth's most powerful and mysterious natural disasters.
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A geologist, is the author of a new book that explores the long history of religious thinking on matters of geological discovery, particularly flood stories such as the biblical account of Noah's ark.
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The rate of extinction of freshwater fishes in North America is estimated to be 877 times the historical background rate. Thirty-nine species have gone extinct since the end of the 19th Century. Between 53 and 86 species are likely to have gone extinct by 2050, according to new estimates.
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For years, many scientists had thought that plate tectonics existed nowhere in our solar system but on Earth. Now, a researcher has discovered that the geological phenomenon, which involves the movement of huge crustal plates beneath a planet's surface, also exists on Mars.
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Scientists have announced a major breakthrough in understanding the Earth's climate machine by reconstructing highly accurate records of changes in ice volume and deep-ocean temperatures over the last 1.5 million years.
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By some estimates, a third of the Earth's organisms by mass live in our planet's rocks and sediments, yet their lives and ecology are almost a complete mystery. Microbiologists have just revealed the first detailed data about a group of methane-exhaling microbes that live deep in the cracks of hot undersea volcanoes.
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USGS science goes to Mars

Posted

With the Mars rover Curiosity's successful landing Sunday, Aug. 5, at 10:32 p.m. PDT, U.S. Geological Survey scientists continue their strategic role in the Mars Science Laboratory (MSL), the most advanced mission yet to explore whether the Red Planet has ever offered environmental conditions favorable for microbial life.
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Scientists have vaporized the Earth -- if only by simulation, that is mathematically and inside a computer. They weren't just practicing their evil overlord skills. By baking model Earths, they are trying to figure out what astronomers should see when they look at the atmospheres of super-Earths in a bid to learn the planets' compositions.
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