All Stories
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PlanetsWhat the Curiosity rover has learned about Mars so far
Scientists take stock of what the Curiosity rover has learned after five years on Mars — and what else it may turn up in the next year or so.
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PhysicsEarly solar system may have slung giant mud balls
The first asteroids may have been great balls of mud. That could solve some puzzling traits of meteorites.
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ComputingMath + teens + practice = a winning competition
Training for an Olympics of math helps students stretch their creativity and learn problem solving skills. If you like puzzles, you might want to check out these events.
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MathMath isn’t just for boys
The United States won the International Mathematical Olympiad in 2015 and 2016. The big question: Why wasn’t there even one girl on either year’s team?
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AnimalsCould a dragonfly’s wings be alive — and breathing?
Highly magnified image showing what looks like breathing tubes suggests the morpho dragonfly’s wings may be unexpectedly alive.
By Susan Milius -
SpaceNewfound stars rank as farthest and one of the smallest
Astronomers have found two stars for the record books — the most distant ever observed and one of the tiniest now known.
By Emily Conover and Lisa Grossman -
GeneticsScientists hide a real movie within a germ’s DNA
A gene-editing technology called CRISPR helped scientists encode a short movie in the DNA of E. coli bacteria.
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GeneticsExplainer: How CRISPR works
Scientists are using a tool called CRISPR to edit DNA in all types of cells.
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EarthScientists Say: Speleology
This is the scientific study of caves, which can include what they’re made of, how they form and what lives in them.
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Materials ScienceRobot grippers imitate gecko feet to help nab space junk
NASA is testing robotic, gecko-inspired gripper hands that might one day help clean up space junk.
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AnimalsNight lights have a dark side
Artificial light at night not only affects our view of the night sky, but also has the ability to impair animal behaviors — and probably our health.
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ClimateHotter air may lead planes to carry fewer passengers
Global warming could force airplanes to carry a lighter load on each flight. This could mean fewer passengers can fly on each plane.