Science & technology
Knitting a road with stones and string
Greener road-building
Carcass counting
Roadkill provide a novel way to sample an area’s animals
They could also show the places where wildlife is most at risk from cars
Human prehistory
The oldest burial in Africa
A cave in Kenya is the resting place of a 78,000-year-old child
Unlucky 13
A blood test may help the diagnosis and treatment of depression
Snippets of RNA are the giveaways
Back-ups for GPS
Satellite-navigation systems such as GPS are at risk of jamming
Alternatives are needed
Post-covid syndrome
Researchers are closing in on long covid
The results are alarming
Knitting a road with stones and string
Greener road-building
New hopes
A malaria vaccine shows promising results in clinical trials
If successful, it could prevent thousands of childhood deaths in Africa
Aeronautics on Mars
NASA’s Martian helicopter, Ingenuity, takes off
Extraterrestrial aviation begins with a 39-second flight
An ancient bacterium
A curious survivor from the age of the dinosaurs
Its genes suggest it may be unchanged since the Jurassic
Cancer research
Mapping cancer as if it were the universe
Techniques from astronomy are being applied to medicine
A vaxxing problem
American export controls threaten to hinder global vaccine production
The world’s biggest vaccine-maker says it will feel the pinch in a month

Group subscriptions
Reuse our content
Help and contact us
Keep updated
Published since September 1843 to take part in “a severe contest between intelligence, which presses forward, and an unworthy, timid ignorance obstructing our progress.”
The Economist
Press centre
The Economist Group
The Economist Group
The Economist Intelligence Unit
The Economist Events
The Economist Store
Which MBA?
GMAT Tutor
GRE Tutor
Executive Jobs
Executive Education Navigator
Executive Education
Terms of Use
Cookie Policy
Manage Cookies
Modern Slavery Statement
Do Not Sell My Personal Information
Copyright © The Economist Newspaper Limited 2021. All rights reserved.
Weekly edition
CoronavirusThe Biden presidencyClimate changeBrexitDaily briefingThe World in 20211843 magazineThe world this weekLeadersLettersBriefingUnited StatesThe AmericasAsiaChinaMiddle East & AfricaEuropeBritainInternationalBusinessFinance & economicsScience & technologyBooks & artsGraphic detailObituarySpecial reportsTechnology QuarterlyEssayBy InvitationSchools briefThe World IfOpen FutureProsperoThe Economist ExplainsNewslettersPodcastsVideoSubscriber eventsiOS appAndroid appExecutive courses
Manage my accountSign out