Science

Green Tea Compound Could Help Fight Multidrug-Resistant Bacteria

Dr. Jonathan Betts from the University of Surrey and colleagues have found that the green-tea polyphenol epigallocatechin gallate (EGCG) can restore the activity of aztreonam, an antibiotic commonly used to treat infections caused by Pseudomonas aeruginosa, a Gram-negative pathogen that is intrinsically multidrug-resistant and frequently associated with healthcare-associated outbreaks. Epigallocatechin …

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Researchers Sequence Genomes of Reef-Building Coral and Its Microbial Symbionts

A team of Australian scientists has successfully completed an integrated genomic characterization of a reef-building coral species called Porites lutea and its microbial partners (bacteria, Archaea, algae etc.). Schematic overview of interactions between Porites lutea and its microbial symbionts. Image credit: Robbins et al, doi: 10.1038/s41564-019-0532-4. “Symbiotic relationships are incredibly …

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Venus May Have Been Habitable for Three Billion Years

The Venusian climate remained stable and temperate for about three billion years, until a mysterious global event resurfaced around 80% of the planet, according to new research by NASA planetary scientists. Observations suggest Venus may have had water oceans in its distant past; a land-ocean pattern like that above was …

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ESA Releases Mesmerizing New Image of Mars

The High Resolution Stereo Camera onboard ESA’s Mars Express orbiter captured this detailed image of the Red Planet on June 17, 2019. This image from ESA’s Mars Express shows a beautiful slice of the Red Planet from the northern polar cap downwards, and highlights cratered, pockmarked swathes of the Terra …

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Experimental Genital Herpes Vaccine Works in Animals

A team of scientists at the University of Pennsylvania has developed a new vaccine candidate to protect against herpes simplex virus type 2 (HSV-2), the most common sexually-transmitted disease. Using a fluorescein isothiocyanate (FITC) conjugated immunoglobulin staining technique, and under direct immunofluorescence (DIF), this tissue sample extracted from a vesicle …

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Scientists Disprove Popular Theory of How DNA Binds Itself

DNA is constructed of two strands, consisting of sugar molecules and phosphate groups. Between these two strands are nitrogen bases, the compounds which make up genes, with hydrogen bonds between them. Until now, it was thought that those hydrogen bonds were what held the two strands together. But a new …

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Bony-Toothed Seabird Lived in New Zealand 62 Million Years Ago

Paleontologists have found the remains of a pelagornithid bird that lived 62 million years ago (early Paleocene epoch) in New Zealand. Protodontopteryx ruthae. Image credit: Derek Onley / Canterbury Museum. Dubbed Protodontopteryx ruthae, the ancient seabird belongs to Pelagornithidae, an ancient family of bony-toothed birds. These seafaring birds were previously …

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