All Stories
- Planetary Science
Ribose, a sugar needed for life, has been detected in meteorites
Samples of rocks that fell to Earth contain a key molecular ingredient of RNA, part of life’s genetic machinery.
- Math
How Julia Robinson helped define the limits of mathematical knowledge
Born 100 years ago, Julia Robinson played a key role in solving Hilbert’s 10th problem.
- Humans
Why screening DNA for ‘designer babies’ probably won’t work
While simulations suggest it’s possible to predict a child’s height from looking at an embryo’s DNA, real-world examples say otherwise.
- Archaeology
An AI found a hidden Nazca Line in Peru showing a humanoid figure
An artificial intelligence program designed to go through massive datasets for hints of ancient geoglyphs called Nazca Lines has discovered a new one.
- Climate
50 years ago, scientists puzzled over a slight global cooling
Five decades ago, scientists were puzzled over a slight dip in global temperatures. Today we know it was just a blip, and that Earth’s climate is warming thanks to industrial activity over the last century.
- Climate
The loss of ‘eternal ice’ threatens Mongolian reindeer herders’ way of life
Mongolian reindeer herders help scientists piece together the loss of the region’s vital “eternal ice” patches.
- Space
How two gamma-ray bursts created record-breaking high-energy photons
Light packing up to 1 trillion electron volts of energy bolsters a theory for how these cosmic explosions produce such high-energy radiation.
- Health & Medicine
Dengue cases in the Americas have reached an all-time high
There have been more dengue cases in the Americas this year than ever before, according to the Pan American Health Organization.
- Neuroscience
Some people with half a brain have extra strong neural connections
Brain scans of six people who had half their brains removed as epileptic children show signs of compensation.
- Life
Caribou migrate farther than any other known land animal
Caribou in Alaska and Canada migrate up to 1,350 kilometers round trip each year, a study reports.
- Health & Medicine
Full intestines, more than full stomachs, may tell mice to stop eating
A new description of stretch-sensing nerve endings in mice’s intestines could lead to ways to treat obesity.
- Animals
Humpback whales in the South Atlantic have recovered from near-extinction
A new count shows the population off Brazil went from about 450 in the 1950s to some 25,000 today.
