SARS-CoV-2 is just one of nonillions of viruses on our planet, and scientists are rapidly identifying legions of new species.
Mya Breitbart has hunted novel viruses in African termite mounds, Antarctic seals and water from the Red Sea. But to hit pay dirt, she has only to step into her back garden in Florida. Hanging around her swimming pool are spiny-backed orbweavers (Gasteracantha cancriformis) — striking spiders with bulbous white bodies, black speckles and six scarlet spikes that make them look like a piece of medieval weaponry. Even more striking for Breitbart, a viral ecologist at the University of South Florida in St Petersburg, was what was inside. When she and her colleagues collected a few spiders and ground them up, they found two viruses previously unknown to science.
Although we humans have been focused on one particularly nasty virus since early 2020, there are legions of other viruses out there waiting to be discovered. Scientists estimate that there are about 1031 individual viral particles inhabiting the oceans alone at any given time — 10 billion times the estimated number of stars in the known Universe.
It’s becoming clear that ecosystems and organisms rely on viruses. Tiny but mighty, they have fuelled evolution for millions of years by shuttling genes between hosts. In the oceans, they slice open microorganisms, spilling their contents into the sea and flooding the food web with nutrients. “Without viruses,” says Curtis Suttle, a virologist at the University of British Columbia in Vancouver, Canada, “we would not be alive.”
There are just 9,110 named species listed by the International Committee on Taxonomy of Viruses (ICTV), but that’s obviously a pitiful fraction of the total. In part, that’s because officially classifying a virus used to require scientists to culture a virus in its host or host cells — a time-consuming if not impossible process. It’s also because the search has been biased towards viruses that cause diseases in humans or organisms we care about, such as farm animals and crop plants. Yet, as the COVID-19 pandemic has reminded us, it’s important to understand viruses that might jump from one host to another, threatening us, our animals or our crops.
Over the past ten years, the number of known and named viruses has exploded, owing to advances in the technology for finding them, plus a recent change to the rules for identifying new species, to allow naming without having to culture virus and host. One of the most influential techniques is metagenomics, which allows researchers to sample the genomes in an environment without having to culture individual viruses. Newer technologies, such as single-virus sequencing, are adding even more viruses to the list, including some that are surprisingly common yet remained hidden until now. It’s an exciting time to be doing this kind of research, says Breitbart. “I think, in many ways, now is the time of the virome.”
In 2020 alone, the ICTV added 1,044 species to its official list, and thousands more await description and naming. This proliferation of genomes prompted virologists to rethink the way they classify viruses and helped to clarify their evolution. There is strong evidence that viruses emerged multiple times, rather than sprouting from a single origin.
Even so, the true range of the viral world remains mostly uncharted, says Jens Kuhn, a virologist at the US National Institute of Allergy and Infectious Diseases facility at Fort Detrick, Maryland. “We really have absolutely no idea what’s out there.”

News
Superbugs Are Losing to Science, Light, and a Little Spice
Texas A&M researchers have found that curcumin, when activated by light, can weaken antibiotic-resistant bacteria, restoring the effectiveness of conventional antibiotics. Curcumin: A Surprising Ally Against Superbugs In 2017, a woman admitted to a [...]
New Research Shatters the Perfect Pitch Myth
For decades, people believed absolute pitch was an exclusive ability granted only to those with the right genetics or early music training. But new research from the University of Surrey proves otherwise. It’s been [...]
Why Some Drinkers Suffer Devastating Liver Damage While Others Don’t
A study from Keck Medicine of USC found that heavy drinkers with diabetes, high blood pressure, or a large waistline are up to 2.4 times more likely to develop advanced liver disease. These conditions may amplify [...]
“Good” Cholesterol Could Be Bad for Your Eyes – New Study Raises Concerns
‘Good’ cholesterol may be linked to an increased risk of glaucoma in individuals over 55, while, paradoxically, ‘bad’ cholesterol may be associated with a lower risk. These findings challenge conventional beliefs about factors that [...]
Reawakening Dormant Nerve Cells: Groundbreaking Neurotechnology Restores Motor Function
A new electrical stimulation therapy for spinal muscle atrophy (SMA) has shown promise in reactivating motor neurons and improving movement. In a pilot clinical trial, three patients who received spinal cord stimulation for one [...]
AI’s Energy Crisis Solved? A Revolutionary Magnetic Chip Could Change Everything
AI is evolving at an incredible pace, but its growing energy demands pose a major challenge. Enter spintronic devices—new technology that mimics the brain’s efficiency by integrating memory and processing. Scientists in Japan have [...]
Nanotechnology for oil spill response and cleanup in coastal regions
(Nanowerk News) Cleaning up after a major oil spill is a long, expensive process, and the damage to a coastal region’s ecosystem can be significant. This is especially true for the world’s Arctic region, [...]
The Role of Nanotechnology in Space Exploration
Nanotechnology, which involves working with materials at the atomic or molecular level, is becoming increasingly important in space exploration. By improving strength, thermal stability, electrical conductivity, and radiation resistance, nanotechnology is helping create lighter, more [...]
New Study Challenges Beliefs About CBD in Pregnancy, Reveals Unexpected Risks
CBD is gaining popularity as a remedy for pregnancy symptoms like nausea and anxiety, but new research suggests it may not be as safe as many believe. A study from McMaster University found that [...]
Does COVID increase the risk of Alzheimer’s disease?
Scientists discover that even mild COVID-19 can alter brain proteins linked to Alzheimer’s disease, potentially increasing dementia risk—raising urgent public health concerns. A recent study published in the journal Nature Medicine investigated whether both mild and [...]
New MRI Study Reveals How Cannabis Alters Brain Activity and Weakens Memory
A massive new study sheds light on how cannabis affects the brain, particularly during cognitive tasks. Researchers analyzed over 1,000 young adults and found that both heavy lifetime use and recent cannabis consumption significantly reduced brain [...]
How to Assess Nanotoxicity: Key Methods and Protocols
With their high surface area and enhanced physicochemical properties, nanomaterials play a critical role in drug delivery, consumer products, and environmental technologies. However, their nanoscale dimensions enable interactions with cellular components in complex and [...]
Nanotech drug delivery shows lasting benefits, reducing need for repeat surgeries
A nanotechnology-based drug delivery system developed at UVA Health to save patients from repeated surgeries has proved to have unexpectedly long-lasting benefits in lab tests – a promising sign for its potential to help human patients. [...]
Scientists Just Found DNA’s Building Blocks in Asteroid Bennu – Could This Explain Life’s Origins?
Japanese scientists detected all five nucleobases — building blocks of DNA and RNA — in samples returned from asteroid Bennu by NASA’s OSIRIS-REx mission. NASA’s OSIRIS-REx mission brought back 121.6 grams of asteroid Bennu, unveiling nitrogen-rich organic matter, including DNA’s essential [...]
AI-Designed Proteins – Unlike Any Found in Nature – Revolutionize Snakebite Treatment
Scientists have pioneered a groundbreaking method to combat snake venom using newly designed proteins, offering hope for more effective, accessible, and affordable antivenom solutions. By utilizing advanced computational techniques and deep learning, this innovative [...]
New nanosystem offers hope for improved diagnosis and treatment of tongue cancer
A pioneering study has unveiled the Au-HN-1 nanosystem, a cutting-edge approach that promises to transform the diagnosis and treatment of tongue squamous cell carcinoma (TSCC). By harnessing gold nanoparticles coupled with the HN-1 peptide, [...]