Microbes, Bacteria, Viruses

Researchers used a miniaturized laser mass spectrometer to identify signs of fossils in a gypsum quarry in Algeria. They suggest the same tool could find early fossils on Mars.

Scientists Hope This Tool Could Identify Tiny Fossils on Mars, Revealing Hints to Potential Early Life on the Planet

If Mars ever hosted microorganisms in its bygone oceans, their fossils might still be preserved in minerals—and now, we have a new potential way to find them

Migrating sandhill cranes stop to rest and refuel in the Midwest as they make the long journey northward to their breeding grounds.

More Than 1,500 Sandhill Cranes Killed by Bird Flu in Indiana, Raising Concerns Among Biologists

The tall, slender grey birds are making their annual spring migration to northern breeding grounds. Experts say the virus could become a larger problem if it gets passed to endangered whooping cranes

Japan Aerospace Exploration Agency astronaut Aki Hoshide uses a vacuum cleaner aboard the ISS. A new study suggests the space station's sterility may be harmful to astronauts' health.

Is the ISS Too Clean for Astronauts’ Health? New Study Finds the Space Station Lacks Microbial Diversity

Humans have evolved alongside microbes in Earth's environment that help strengthen our immune systems. But sterile living conditions can reduce that beneficial exposure

Dead trees teem with life.

What Happens to a Tree That Dies in a Forest?

Rotting logs turn out to be vital to forest biodiversity and recycling organic matter

Microbes can grow in clouds and even divide in two.

A Brief and Amazing History of Our Search for Life in the Clouds

By collecting samples after climbing a high peak and firing rockets with special traps into the upper atmosphere, scientists have found microbes living in thin air

An artistic representation of microorganisms. New research suggests sex may transfer a distinctive microbiome to a person's partner.

Couples Exchange Bacteria During Intercourse, Known as the 'Sexome.' It Might Help Track Down Sexual Assault Perpetrators

In a study of 12 heterosexual couples, researchers noted the presence of a partner's genital bacteria after sex, even when the pair used a condom

Cuddly lovebirds have come to represent Valentine's Day, and their name is even used to refer to two people who are infatuated with one another.

14 Fun Facts About Lovebirds, From Their Lifelong Devotion to Surprising Aggression

The cuddly, colorful parrots have become a symbol of Valentine’s Day. Here’s what to know about the famously affectionate birds

Researchers are investigating oyster "blood" as a potential new treatment for antimicrobial-resistant pathogens.

Oyster 'Blood' May Be the Secret Weapon in Our Fight Against Antibiotic-Resistant Superbugs, Study Finds

In lab experiments, a protein found in the Sydney rock oyster made some antibiotics more effective and killed several types of illness-causing bacteria

Parts of the deep Pacific Ocean are covered in metallic lumps known as polymetallic nodules. A study published last year suggested they produce oxygen without sunlight.

Scientists Who Found Mysterious 'Dark Oxygen' on the Ocean Floor Plan a New Expedition, Hoping to Settle Disputes

Last year, the team made headlines when it published a paper describing how metal lumps at the bottom of the Pacific Ocean seemed to produce oxygen without sunlight

The world’s first Covid-19 human challenge study was born in early 2021.

What Have We Learned From Intentionally Infecting People With Covid-19?

Challenge trials help researchers study immune responses. Skeptics still doubt the approach is worth the risks

DNA on Earth is built from sugars with a property known as right-handedness. Though left-handed sugars aren't used by any known life, scientists can create them—but now, researchers say they shouldn't.

Scientists Warn of an 'Unprecedented Risk' From Synthetic 'Mirror Life,' Built With a Reverse Version of Natural Proteins and Sugars

So-called mirror cells could rampage through our ecosystems, food supply and immune systems, experts say, potentially without existing barriers to protect against them

Scientists have discovered the strongest evidence yet that healthy vertebrates can have brain microbiomes.

Fish Have a Brain Microbiome. Could Humans Have One Too?

The discovery that other vertebrates have healthy microbial brains is fueling questions about our own brains

A rock layer showing the S2 impact tsunami bed with chunks of ripped-up seafloor

A Giant Meteorite Ripped Up the Seafloor and Boiled Earth's Oceans 3.26 Billion Years Ago. Then, Life Blossomed in Its Wake

Geologists suggest the catastrophic impact of "S2" delivered key nutrients to the oceans, prompting microorganisms to thrive

Polar bears are spending more time on land as sea ice shrinks.

Polar Bears Are Exposed to More Parasites, Viruses and Bacteria as the Arctic Heats Up

Pathogens are more common in polar bears living in the Chukchi Sea now than they were three decades ago, a new study suggests—but it's not yet clear what that means for the mammals' health

Researchers found roughly 40 depressions on the lake bed of Lake Michigan within the Wisconsin Shipwreck Coast National Marine Sanctuary.

Mysterious Craters Discovered on the Bottom of Lake Michigan Could Hold Lessons About Early Life on Earth

Scientists aren't sure how the circular indentations some 450 feet below the surface formed, but they hope to investigate further

The chunks of cheese were found alongside ancient mummies in China in 2003.

The World's Oldest Cheese Was Buried in a Chinese Tomb 3,600 Years Ago. Now, Scientists Have Sequenced Its DNA

New research has revealed that the mysterious white substance found alongside three ancient mummies was once a soft cheese called kefir

View from the researchers' airplane flying over Japan

Scientists Have Found Bacteria and Fungi 10,000 Feet Up in the Air

The discovery has implications for human health, since the microbes included some that were still viable, some that could be infectious to humans and others that carried drug-resistant genes

Deaths attributable to antimicrobial resistance could reach 39 million between 2025 and 2050.

Deaths From Antibiotic-Resistant Infections Could Reach 39 Million by 2050, Study Suggests

A new paper analyzes three decades of fatalities around the world and predicts how "superbugs" will affect human health in the future

Biocrust in Utah

Inside the Effort to Save Earth's Biocrusts

Think twice before stepping on that crunchy top layer of soil. It may be a vital ecosystem that you can help protect

The drill site on Guliya Glacier, where researchers obtained an ice core representing 41,000 years of history.

Experts Discover 1,700 Ancient Viruses in a Tibetan Glacier

Studying how the viruses, which do not infect humans, adapted to previous major temperature shifts could hold clues to how modern viruses will react to the current climate change

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