How This Bacterial Toxin Kills Antibiotic-Resistant Pathogens Like MRSA

Posted on Categories Discover Magazine

Crystals of a lysozyme. Similar compounds could be used to kill antibiotic-resistant bacteria like MRSA. (Credit: Zanecrc/Wikimedia Commons) A new way to destroy MRSA, an antibiotic-resistant pathogen, might offer clue to alleviating the antibiotic crisis. In a new study, researchers have found how a bacterial toxin capable of destroying the pathogen does its job. The compound can punch holes in the cell walls of pathogens like MRSA, killing the cells without the need for traditional anti ...read more

Voyager 2’s First Reports from Interstellar Space Surprise Scientists

Posted on Categories Discover Magazine

Voyager 2 passes into interstellar space in this artist's illustration. (Credit: NASA) NASA's Voyager 2 spacecraft crossed into interstellar space last November. Now, one year later, scientists have published the first results from the data Voyager 2 gathered as it passed from the sun’s sphere of influence and into interstellar space. In some ways, what Voyager 2 experienced was surprisingly different from what Voyager 1 found when it passed into interstellar space in 2012. These la ...read more

Nine days of California infernos, as seen from space

Posted on Categories Discover Magazine

Please click on this animation of satellite images to see an overview of California wildfires from Oct. 23 to Nov. 1, 2019. Look for bluish smoke plumes as well as red dots marking areas where the satellites detected fire. The Kincade fire erupts in the north on Oct. 24th, as does the Tick Fire near Los Angeles, at lower right. Later in the sequence, five other blazes ignite in the L.A. area. (Images: NASA Worldview. Animation: Tom Yulsman) The Kincade Fire has been the most destructive of C ...read more

Monte Verde: Our Earliest Evidence of Humans Living in South America

Posted on Categories Discover Magazine

The site of Monte Verde in Chile today. Credit: (Geología Valdivia/Wikimedia Commons) As the Ice Age began to wane, people from northeastern Asia spread to the Americas, some of the last uninhabited continents on Earth. The pioneers traveled south of mile-high ice sheets covering Canada and found vast lands, abounding with mammoth, giant sloth and other now-extinct megafauna. This much has been known for decades. But when it comes to the details, debates have raged over precisely wh ...read more

Why Desalinating Water is Hard — and Why We Might Need To Anyway

Posted on Categories Discover Magazine

A desalination plant in Hamburg, Germany. (Credit: Andrea Izzotti/Shutterstock) In places like San Diego and Dubai where freshwater is scarce, humans turn to machines that pull the salt out of seawater, transforming it into clean drinking water. This process, called desalination, has been turning sea and brackish groundwater into potable water since the mid-20th century. The technology could become increasingly important in the near future, as the rising temperatures and erratic rain pat ...read more