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Was another civilization on Earth before humans?
How do we know earlier industrial civilizations on Earth didn't rise and fall long before humans appeared? That's the question posed in a new scientific thought experiment.
April 18, 2018
March 2018 in top 6 warmest on record
Last month wasn't as hot as March 2016 or March 2017, but it's in the warmest 6 since modern record-keeping began in 1880.
April 18, 2018
Underwater noise pollution stresses aquatic animals
The roar of motors, ping of military sonar, bangs and blasts from offshore development are distracting, confusing, and even killing, aquatic animals.
April 17, 2018
Top 10 things about brown recluse spiders
It's their active season. Here are some things you might not know.
April 6, 2018
Earth’s magnetosphere envelops and protects us
A giant bubble of magnetism protects us from the sun's fury. Take 3 minutes to learn about it, in this new NASA ScienceCast video.
April 6, 2018
Sahara Desert is expanding
A new study finds that the world’s largest desert has grown by 10 percent since 1920.
April 5, 2018
Does space weather threaten high-tech life?
The wired Earth of the 21st century is at the mercy of the volatile nature of the sun, says a scientist who studies solar storms.
April 4, 2018
Antarctic ice grounding lines are shifting
Europe's CryoSat satellite was used - over 7 years - to track 10,000 miles (16,000 km) of Antarctic coastline. It can be seen warm ocean water is eating away at Antarctica's floating margins.
April 4, 2018
Blackbirds in the city: Bad health, longer life
Blackbirds live longer in cities than in forests. But a new genetic analysis suggest that city birds have much poorer health than their rural cousins.
April 3, 2018
Watch a robot fish swim in the ocean
MIT computer scientists have developed SoFi - a soft, robot fish made of silicone rubber - that can swim alongside real fish in the ocean.
April 2, 2018
