Think

Is This Tissue a New Organ? Maybe. A Conduit for Cancer? It Seems Likely.

Bologna Blamed in Worst Listeria Outbreak in History

New story in Science and Health from TIME: Scientists Worry Scott Pruitt’s New EPA Change Will Harm Life-Saving Research

Many Americans Try Retirement, Then Change Their Minds

New story in Science and Health from TIME: Ship That Washed Up on Florida Beach Could Be From 1700s, Researchers Say

New story in Science and Health from TIME: Why Does Cracking Your Knuckles Make So Much Noise? Science Finally Has an Answer

New story in Science and Health from TIME: Two Commercial Pilots Had a Close Encounter With a Possible UFO Over Arizona. Listen to the Eerie Radio Traffic

New story in Science and Health from TIME: China’s Falling Space Station Won’t Fall On Your Head. Probably.

New story in Science and Health from TIME: Satellite Images Aided the Discovery of an Ancient Civilization Buried in the Amazon

Medicare Is Cracking Down on Opioids. Doctors Fear Pain Patients Will Suffer.

Grindr, Popular Gay Sex App, to Offer H.I.V. Test Reminders

For Many Strokes, There’s an Effective Treatment. Why Aren’t Some Doctors Offering It?

New story in Science and Health from TIME: People Are Wearing Purple Today for Epilepsy Awareness Day. Here’s What That Is

New story in Science and Health from TIME: Lights Around the World Go Dark for Earth Hour

Why Can’t Dying Patients Get the Drugs They Want?

New story in Science and Health from TIME: A New TV Series Will Make You Believe the Earth Is an Organism

American Adults Just Keep Getting Fatter

New story in Science and Health from TIME: People Thought This 6-Inch-Tall Skeleton Was an Alien. But Science Says It Was a Human Girl

South Sudan Halts Spread of Crippling Guinea Worms

More Cases Are Reported of Unusual Cancer Linked to Breast Implants

AIDS Researcher Robert R. Redfield Named to Lead the C.D.C.

New story in Science and Health from TIME: A Chinese Space Lab is Going to Fall to Earth — And Nobody Knows Where It Will Land

New story in Science and Health from TIME: 5 Things You Should Know About Astronomer Guillermo Haro

N.I.H. to Investigate Outreach to Alcohol Companies

New story in Science and Health from TIME: This Is What the Spring Equinox Looks Like From Space

New story in Science and Health from TIME: Promising Male Birth Control Pill Is Safe and Effective, Study Says

The Struggle to Build a Massive ‘Biobank’ of Patient Data

AIDS Researcher Top Candidate to Lead the C.D.C.

This Study May Find That Moderate Drinking Is Healthy. The Alcohol Industry Was Asked to Pay for It.

Palliative Care Film Challenges Stereotypes About Opioids

New story in Science and Health from TIME: Donald Trump Said America Is Going to Mars. Here’s Why that Won’t Happen Any Time Soon

Picture a Leader. Is She a Woman?

A Quiet Drug Problem Among the Elderly

New story in Science and Health from TIME: How Stephen Hawking Helped Redefine Humanity’s Existence

What’s Behind Many Mystery Ailments? Genetic Mutations, Study Finds

New story in Science and Health from TIME: Remembering Stephen Hawking’s Greatest Scientific Accomplishment — and My Famous Bet Against Him

New story in Science and Health from TIME: Scott Kelly Spent a Year in Space and Now His DNA Is Different From His Identical Twin’s

New story in Science and Health from TIME: Microplastic Contamination Is Found in Most Bottled Water, a New Study Says

New story in Science and Health from TIME: Stephen Hawking’s Legacy Spans the Universe — Both Within and Beyond Us

Elizabeth Holmes, Theranos C.E.O. and Silicon Valley Star, Accused of Fraud

New story in Science and Health from TIME: A Solar Storm Could Bring Spectacular Northern Lights Tonight. Here’s How You Can See Them

New story in Science and Health from TIME: People Think It’s an Interesting Coincidence That Stephen Hawking Died on Pi Day

New story in Science and Health from TIME: ‘We Have Lost a Truly Beautiful Mind.’ Actor Eddie Redmayne Pens Emotional Tribute to Stephen Hawking

New story in Science and Health from TIME: Here’s Why Stephen Hawking Never Won the Nobel Prize in Physics

New story in Science and Health from TIME: ‘Remember to Look Up at the Stars.’ Read Some of Stephen Hawking’s Most Memorable Quotes

New story in Science and Health from TIME: Half of All Wildlife Could Disappear from the Amazon, Galapagos and Madagascar Due to Climate Change

New story in Science and Health from TIME: Famed Physicist Stephen Hawking Has Died at the Age of 76

What Fertility Patients Should Know About Egg Freezing

New story in Science and Health from TIME: Chernobyl Is Now the World’s Unlikeliest Green Energy Experiment

In Poor Countries, Antismoking Activists Face Threats and Violence