Stephanie Pappas is a contributing writer for Live Science, covering topics ranging from geoscience to archaeology to the human brain and behavior. She was previously a senior writer for Live Science but is now a freelancer based in Denver, Colorado, and regularly contributes to Scientific American and The Monitor, the monthly magazine of the American Psychological Association. Stephanie received a bachelor's degree in psychology from the University of South Carolina and a graduate certificate in science communication from the University of California, Santa Cruz.
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A fentanyl vaccine enters human trials in 2026 — here's how it worksA vaccine in development would be the first proactive treatment for overdose and fentanyl addiction, if approved.
By Stephanie Pappas Published
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Giant structure discovered deep beneath Bermuda is unlike anything else on EarthA thick layer of more than 12 miles of rock may explain why Bermuda seems to float above the surrounding ocean.
By Stephanie Pappas Published
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Russia's Bezymianny volcano blew itself apart 69 years ago. It's now almost completely regrown.A 1956 eruption collapsed much of the Bezymianny volcano in Kamchatka, Russia, but frequent eruptions since — including a large event in November — means it has now almost completely regrown.
By Stephanie Pappas Published
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Has America's obesity rate plateaued?Some recent national numbers suggest the obesity rate has plateaued or even declined. Experts are skeptical.
By Stephanie Pappas Published
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US could lose its measles elimination status within months, experts sayWith 45 outbreaks of measles over the past year, the United States is at risk of endemic spread within months, experts told Live Science.
By Stephanie Pappas Published
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A gulf separating Africa and Asia is still pulling apart — 5 million years after scientists thought it had stoppedThe Arabian and African tectonic plates failed to pull apart 28 million years ago at the Gulf of Suez, but the area hasn't stopped rifting.
By Stephanie Pappas Published
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Eruptions of ocean volcanoes may be the echoes of ancient continental breakupsWaves in Earth's mantle created by the rifting of continents may peel the planet's crust from below, feeding volcanoes in the middle of the ocean.
By Stephanie Pappas Published
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What are the signs that nature is telling us?' Scientists are triggering earthquakes in the Alps to find out what happens before one hitsResearchers are deliberately setting off real (small) earthquakes to understand how to gauge the danger of a fault line before it breaks.
By Stephanie Pappas Published
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Scientists create ultrapowerful, squishy robotic 'eye' that focuses automatically and doesn't need a power sourceInspired by animal vision, the eye could become part of soft robots without any electronic components.
By Stephanie Pappas Published
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An Iranian volcano appears to have woken up — 700,000 years after its last eruptionTaftan volcano near the border of Pakistan has shown signs of unrest in recent years.
By Stephanie Pappas Published
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Link between Cascadia and San Andreas Fault earthquakes discovered 30 years after lost vessel stumbled across key dataGeological records hint that earthquakes at the Cascadia subduction zone might trigger the San Andreas Fault.
By Stephanie Pappas Published
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An 'ice tsunami' in 2024 ripped through the Yukon with such force it tore up trees and the riverbedChunks of river ice tore down trees after a landslide caused a tsunami in the Yukon in December.
By Stephanie Pappas Published
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The Red Sea experienced 'one of the most extreme environmental events on Earth' 6 million years agoThe Red Sea became a desert about 6.2 million years ago, before a massive flood from the Indian Ocean turned it into a waterway again.
By Stephanie Pappas Published
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AI can now be used to design brand-new viruses. Can we stop it from making the next devastating bioweapon?Scientists have used AI to design bacteriophages, or viruses that infect only bacteria. Does the prospect of designing viruses with AI pose threats to biosecurity?
By Stephanie Pappas Published
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Plate tectonics may be why Earth has life — and the key to finding life elsewhere in the universeFeature Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than previously thought — and may be a big reason that our planet harbors life.
By Stephanie Pappas Published
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Yosemite's glaciers have survived 20,000 years — but we could be the first people to see Sierra Nevada ice-freeNew research finds the disappearance of glaciers in the Sierra Nevada will be unprecedented in the human history of North America.
By Stephanie Pappas Published
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Perplexing diamonds from South Africa mine contain 'almost impossible' chemistrySeemingly contradictory materials are trapped together in two glittering diamonds from South Africa, shedding light on how diamonds form.
By Stephanie Pappas Published
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RFK's handpicked advisers are coming for the childhood vaccine schedule. Here's what to know.The Advisory Committee on Immunization Practices may vote to disrupt the childhood vaccine schedule, despite what experts say is a lack of evidence to do so.
By Stephanie Pappas Published
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Canada's 2023 wildfires contributed to 87,000 early deaths worldwide, study estimatesThe health impacts from Canada's worst wildfire stretched into Europe, Asia and Africa, a new study reveals.
By Stephanie Pappas Published
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'We know what to do; we just have to implement it.': Pregnancy is deadlier in the US than in other wealthy countries. But we could fix that.Cuts to Medicaid and legal confusion around patient care post-Roe v. Wade may prevent improvements in the maternal mortality rate.
By Stephanie Pappas Published
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Toxic chemicals that pollute groundwater are formed up in the stratosphere, surprise findings showPerchlorates, a group of toxic chemicals that pollute groundwater, first form on rare particles in the stratosphere, scientists have discovered.
By Stephanie Pappas Published
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Mystery quake that rocked Northern California in 1954 came from 'eerily quiet' Cascadia Subduction ZoneScientists link a magnitude 6.5 earthquake that shook Humboldt Bay, California, 71 years ago to the "locked" Cascadia Subduction Zone.
By Stephanie Pappas Published
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'Sleeping giant' fault beneath Canada could unleash a major earthquake, research suggestsA new assessment of the enormous Tintina fault suggests it has been slowly accumulating strain over thousands of years.
By Stephanie Pappas Published
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First video of an earthquake fault cracking has revealed another surpriseA stunning video of the ground cracking during a magnitude 7.7 earthquake in Myanmar is revealing new surprises.
By Stephanie Pappas Published
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