Vaginal bacteria may eat HIV prevention drugs and leave women at risk

Differences in the vaginal microbiome may leave some women at a greater risk of contracting HIV because certain microbes metabolise HIV prevention drugs Source: https://www.newscientist.com/article/2261431-vaginal-bacteria-may-eat-hiv-prevention-drugs-and-leave-women-at-risk/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

Curiosity rover spots signs of ancient megafloods on Mars

We already know that Gale Crater on Mars used to hold a lake or series of lakes a few billion years ago. Now, NASA’s Curiosity rover has found evidence for ancient giant floods that washed through the region as well. Source: https://earthsky.org/space/megafloods-gale-crater-mars-life-curiosity-rover…

Is Mars still volcanically active?

A new study of geologically young lava flows in Elysium Planitia suggests that Mars might still have residual volcanic activity below its surface. The finding could also correlate with seismic activity detected by the InSight lander in the same region and may have implications for possible martian life. Source: https://earthsky.org/space/mars-cerberus-fossae-young-lava-flows-volcanic-activity…

Deep Frozen Arctic Microbes Are Waking Up

An anonymous reader shares an opinion piece from Scientific American: Permafrost covers 24 percent of the Earth’s land surface, and the soil constituents vary with local geology. Arctic lands offer unexplored microbial biodiversity and microbial feedbacks, including the release of carbon to the atmosphere. In some locations, hundreds of millions of years’ worth of carbon is buried. The layers may still…

Clues to Mars life in Earth’s Atacama Desert

Researchers in the U.S. and Spain have discovered a plethora of previously unknown microbes living in wet clay layers below Chile’s arid Atacama Desert. The finding will help future rovers search for life on Mars. Source: https://earthsky.org/space/microbes-clay-atacama-desert-life-on-mars…

Ancient life signs under dinosaur-killing Chicxulub crater

Researchers have found evidence for an ancient microbial ecosystem in a hydrothermal system beneath Mexico’s Chicxulub Crater, thought to be the site of the impact that killed the dinosaurs 66 million years ago. Source: https://earthsky.org/space/dinosaur-killing-chicxulub-impact-crater-hydrothermal-microbial…

Daycares In Finland Built a ‘Forest Floor,’ and It Changed Children’s Immune Systems

omfglearntoplay shares a report from ScienceAlert: Playing through the greenery and litter of a mini forest’s undergrowth for just one month may be enough to change a child’s immune system, according to a small new experiment. When daycare workers in Finland rolled out a lawn, planted forest undergrowth such as dwarf heather and blueberries, and allowed children to care for crops…

CRISPR weapon spread by bacterial sex could destroy deadly superbugs

Bacteria armed with a CRISPR-based weapon that infects other microbes during the bacterial equivalent of sex could help us kill off dangerous antibiotic-resistant superbugs – if regulators approve their use Source: https://www.newscientist.com/article/2258049-crispr-weapon-spread-by-bacterial-sex-could-destroy-deadly-superbugs/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

Astronomers identify 24 possible superhabitable worlds

Are there worlds out there – orbiting distant stars – even better suited for life than Earth? Might they be older, larger, warmer, wetter and with longer-living stars? Now astronomers have identified 24 possible superhabitable worlds. Source: https://earthsky.org/space/superhabitable-exoplanets-better-suited-for-life-than-earth…

Ancient microbial life used arsenic to thrive in a world without oxygen

Today, most life on Earth is supported by oxygen. But ancient microbial mats existed for a billion years before oxygen was present in the atmosphere. So what did life use instead? Source: https://earthsky.org/earth/ancient-microbial-life-arsenic…