Science

Model human embryo, created from stem cells, survives past two weeks
A model human embryo capable of developing past day 14 could revolutionize our understanding of human development.
How years of fighting every wildfire helped fuel the Western megafires of today
The current approach to fire management poses unnecessarily high stakes for forests. Here’s why fighting every fire does more harm than good.
Record-breaking amount of Earth’s mantle drilled out of ocean floor
Scientists aboard the JOIDES Resolution have retrieved “a staggering” amount of mantle rock from below the ocean floor.
Modifying poplar tree genes to fight pollution
Do bigger brains have better memories?
CRISPR may unlock targeted cannabis therapy 
Series| The Edge
This coach cut football concussions in half
The Drug Users Bible: A guide to safe drug use
Does playing sports quiet the brain?
Unlocking the mysteries of muscles in motion
9 ways the 2010s decade changed the world
A molecular biologist discusses the morality of gene editing
What is static electricity? We may finally have an answer.