Genomes Reveal Humanity's Journey into the Americas
DNA has upended neat and tidy accounts of the peopling of the American continents
Features
World's Largest Map of Space Offers Clues on Dark Energy
A new chart of millions of galaxies across 11 billion years of cosmic history helps to answer some of the biggest cosmological questions
Damage to a Protective Shield around the Brain May Lead to Alzheimer's and Other Diseases
The blood-brain barrier deteriorates with aging, but animal studies indicate repairs can make old brains look young again
Will Probiotics Save Corals or Harm Them?
Bacteria are helping corals in lab tests, but risks rise as treatments are applied in the wild
Adolescent Brains Are Wired to Want Status and Respect: That's an Opportunity for Teachers and Parents
Advances in neuroscience and psychology could lead to real-world benefits in education and mental health
Are Dolphins Right-Handed or Left-Handed?
That is a trick question because dolphins obviously don’t have hands. But studying whether they have “handedness” led to identifying a quirk of human perception
The Art of Mathematics in Chalk
A photography project reveals the allure of equations in mathematicians’ blackboard work
Departments
- From the Editor
Dolphin Spins, Adolescent Brains and a Very Big Map
- Letters
Readers Respond to the January 2021 Issue
- Advances
Saturn Probe Data Reveal Impressive Depth of Titan's Largest Sea
The COVID Zoom Boom Is Reshaping Sign Language
Whales' Long, Loud Calls Reveal Structure beneath Ocean Floor
New Blood Analyzer Tells Human from Animal Samples on the Spot
Giant Mud Volcano Reveals Its Powerful Explosive Secrets
Blood Test Gives Early Warning of Failing Heart Transplant
In Case You Missed It
Using Light to Control Cells Holds Promise across the Body
Evolution's Favorite Fish Diversify through 'Noncoding' Genes
- Forum
The James Webb Space Telescope Needs to Be Renamed
- The Science of Health
COVID Has Pushed Medical Research into Remote Trials, Benefiting Patients and Scientists
- The Science Agenda
Those Who Investigate Premature Deaths Should Have Medical Training
- Recommended
Stunning Images from Chemistry, the Inscrutable Quantum Reality, and Other New Science Books
- 50, 100 & 150 Years Ago
50, 100 & 150 Years Ago: May 2021
- Graphic Science
Hormone Highs and Lows Follow a Seasonal Pattern
- Meter
Poem: 'String Theory'
- Observatory
Making Vaccines Is Straightforward; Getting People to Take Them Isn't
