Gayle Cushenberry

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Pesticide linked to three generations of genetic damage

No one's used the pesticide Methoxychlor for more than a decade — but according to a new study, it may be harming people for generations to come. A group of researchers at Washington State University have discovered new effects from the pesticide that reach into a subject's epigenome, affecting …

Invertebrate populations have dropped by 45 percent in the last four decades

"The richness of the animal world of our planet is being seriously threatened by human activities."<p>Much has been said about the loss of bird, mammal, reptile, and amphibian species around the world. By current estimates, at least 322 species have gone extinct in the last 500 years. And researchers …

HPV vaccination rates in the US are still 'unacceptably low,' says CDC

Doctors are failing to recommend an STD vaccine that protects against cancer<p>The number of teenagers who were vaccinated for HPV last year was still "unacceptably low," according to a report released today by the CDC. Despite a slight increase in vaccination rates over previous years, only 35 …

How DNA Scissors Can Perform Surgery Directly On Your Genes

These gene-slicers may help tackle HIV, Alzheimer's, and brain cancer.<p>Jay Johnson’s DNA was cut into pieces. Tiny molecular scissors chopped it into slices the cell couldn’t readily repair. The cell did its best at a speedy patch-up job, but the gene was left effectively useless. As the battered …

Asteroid's 'bad timing' killed off dinosaurs, new evidence shows

Dinosaurs might have survived the catastrophic impact that ended their reign had the devastating asteroid that slammed into the Earth arrived at a "more convenient time", a scientist has claimed. As a result humans would probably not exist.<p>The violent collision 66m years ago, which occurred in the …

IVF technique that tests embryos for genetic disorders has first success

Doctors in London have reported the first pregnancy in Europe from a new IVF procedure that checks embryos for genetic disorders before they are implanted.<p>The technique allows doctors to select embryos that are free of dangerous mutations carried by one or both parents even if the precise nature of …

A 2012 Solar Storm Almost Caused A Worldwide Catastrophe

"If it had hit, we would still be picking up the pieces," said Daniel Baker of the Laboratory for Atmospheric and Space Physics at the University of Colorado in a NASA press release. Luckily for us, it missed our home planet.<p>The GIF below shows the storm on July 23, 2012, as captured by …

Researchers fully 'delete' HIV from human cells for the first time

So far, HIV has eluded a cure because it installs its genome into human DNA so insidiously that it's impossible for our immune system to clear it out. While current treatments are effective, a lifetime of toxic drugs is required to prevent its recurrence. But researchers from Temple University may …

Does Earth have a second moon?

Mars has two moons, Jupiter has 67, Saturn 62, Uranus 27, Neptune 14. But our planet Earth has just one moon. Doesn’t it?<p>Many planets in our solar …

Mark Your Calendars: In A Year, We'll Arrive At Pluto

Planetary scientist Alan Stern is counting down the days — just 365 of them now. He has spent the past 8 1/2 years waiting for the New Horizons spacecraft to make a close encounter with Pluto. Next year, on July 14, the spacecraft will reach its destination.<p>"Not only did we choose the date, by the …

The End Is Nigh For the Guinea Worm

Eradicating this this nasty parasite would be great for humanity, but should we consider the ecological impacts?<p>The guinea worm is one seriously disturbing parasite. When someone ingests its larvae by drinking unfiltered water, the worm reproduces and incubates for months in the person's abdomen, …

Disease

Newfound Alien Planet 'Gliese 832c' May Be Able To Support Life

A newfound alien world might be able to support life — and it's just a stone's throw from Earth in the cosmic scheme of things.<p>An international team of astronomers has discovered an exoplanet in the star Gliese 832's "habitable zone" — the just-right range of distances that could allow liquid water …

A Shocking Fish Tale Surprises Evolutionary Biologists

The electric eel's powerful ability to deliver deadly shocks — up to 600 volts — makes it the most famous electric fish, but hundreds of other species produce weaker electric fields. Now, a new genetic study of electric fish has revealed the surprising way they got electrified.<p>Electric eels aren't …

What you need to know about 3D-printed organs

Sure, 3D printers that can spit out chocolates, create shoes, handcraft cars and help astronauts sound fun and magical, but a lot of scientists are working to make models that aren't just fun. They're developing 3D printers that can also save and change lives by printing out functional human …

10 Scientific Ideas That Scientists Wish You Would Stop Misusing

Many ideas have left the world of science and made their way into everyday language — and unfortunately, they are almost always used incorrectly. We …

How To Make A New Planet Home

Three simple steps for an intergalactic exit plan<p>The recipe for creating a habitable planet turns out to be surprisingly simple: Just add water—and atmospheric gases. Mars has both, relics from four billion years ago when the planet was warm and wet. “When it comes to Mars, and only Mars, the …

Why fireflies light up

A firefly’s familiar glow is caused by chemical reaction. Explanation here, plus many wonderful firefly photos.<p>Fireflies are sometimes called …

X-rays reveal the mysteries of fire-ant rafts

Fire ants may be famous for their vicious sting, but they're also remarkable builders, able to quickly assemble a working raft out of their own bodies and sail through dangerous flash flood waters. But their secrets of living masonry have remained shrouded from view.<p>Now, scientists have peered into …