
Replaceable You: Adventures in Human Anatomy with Mary Roach
Mary Roach unpacks the millennia-long effort to replace failing body parts—and the reasons that modern medicine still struggles to match the original designs.
Fonda Mwangi is an award-winning multimedia editor at Scientific American and showrunner of Science Quickly. She previously worked at Axios, the Recount and WTOP News. She holds a master’s degree in journalism and public affairs from American University in Washington, D.C.

Replaceable You: Adventures in Human Anatomy with Mary Roach
Mary Roach unpacks the millennia-long effort to replace failing body parts—and the reasons that modern medicine still struggles to match the original designs.

Vaccine Policy Shift, Brain Changes in Athletes and Ants That Harness Another Species’ DNA
A revamped CDC advisory committee faces vaccine debates, studies reveal brain changes in athletes, and climate change drives deadly heat waves across Europe.

Can Your Microbiome Affect Your Mood?
Scientists are uncovering how your gut might be shaping your thoughts, feelings and cravings.

Kissing Bugs, Koalas and Clues to Life on Mars
Kissing bugs are creeping across the U.S.—and they’re bringing Chagas disease with them.

How Your Brain Constructs—And Sometimes Distorts—Your Experience of the World
In his new book, Daniel Yon explains how our brain is constantly constructing reality

Alpha-Gal Syndrome Explained: The Tick-Borne Allergy Affecting Diets Worldwide
A single tick bite can trigger a bizarre meat allergy—here’s how alpha-gal syndrome is reshaping people’s diets.

Marsquakes, Vaccine Politics and Mammoth Microbiomes
A common nasal spray shows promise in reducing COVID risk, but vaccine access remains tangled in policy in the U.S.

Experts Warn of Growing Threats amid CDC Resignations
With the CDC in disarray and its future uncertain, this episode explores what’s driving the exodus of agency staff and what this means for national health security.

How to Read Hurricane Maps and Avoid Common Mistakes
Hurricane forecast maps are more complex than they appear. Understanding them could change how you prepare for the next storm.

The Storm That Drowned a City—And the Science That Saw It Coming
Two decades after Katrina, we revisit the storm and discuss the evolution of hurricane preparedness since then.

The Mystery of America’s Peanut Allergy Surge—And the Promising Science behind New Treatments
Peanut allergies more than tripled in U.S. kids between the late 1990s and late 2000s, and the prevalence has risen even more since then. Scientists are still searching for answers—and new ways to treat them.

What Can Nature Teach Us about Sex and Gender?
Traditional biology has long ignored nature’s sexual diversity—but evolution tells a far more complex story.

Chikungunya Outbreak, Glacial Outbursts and a New Human Ancestor
China is having a fast-rising chikungunya outbreak in a place that has never had one before.

Sam Kean’s New Book Dinner with King Tut Explores the Wild World of Experimental Archaeology
In his new book, Sam Kean reveals how re-creating ancient tools, techniques and traditions can unlock secrets about how our ancestors lived—and what they felt.

This Hormone-Free Pill Could Finally Expand Birth Control Options for Men
A new hormone-free birth control pill that reversibly stops sperm production has passed its first safety trial in humans, offering hope for more reversible contraceptive options.

Rogue Worlds May Not Be So Lonely After All, Europa Clipper Completes Key Test, and RFK, Jr., Pulls $500 Million in mRNA Vaccine Funding
From planets roaming space to major shifts in health funding, catch up with this week’s news roundup.

A Meteorologist in Congress Fights for Climate Science
Representative Eric Sorensen of Illinois shares how his meteorology roots drive his fight to protect climate science and push back against political interference.

NASA Faces Deep Budget Cuts—Every Living Former Science Chief of the Agency Is Sounding the Alarm
NASA faces historic budget cuts that could shutter missions and stall vital research, prompting a bipartisan outcry from all of the agency’s living former science chiefs.

Russia’s Earthquake, Wonders of Walking and Plant Genetics
The lowdown on the Environmental Protection Agency’s move to repeal of the “endangerment” finding. Also, how did a juicy ketchup ingredient help create a starchy tuber?

Claude 4 Chatbot Raises Questions about AI Consciousness
A conversation with Anthropic’s chatbot raises questions about how AI talks about awareness.

This Summer’s Extreme Weather Explained: Flash Floods and Corn Sweat
Extreme weather is front-page news. But what are the phenomena behind the headlines?

Summer Meteor Showers, Short Summer Days and Ancient Arthropods
Set your alarm on Wednesday to see some of the summer’s stunning meteor showers.

Bring These Scientific American–Recommended Books to the Beach This Summer
If you’re seeking a summer read, Scientific American has some fantastic fiction and notable nonfiction to recommend.

Were the Wright Brothers First in Flight? Inside a 1925 Dispute
This episode of Science Quickly goes on an archival adventure in Scientific American’s July 1925 issue.