How Mars Lost Its Magnetic Field—and Then Its Oceans
Chemical changes inside Mars's core caused it to lose its magnetic field. This, in turn, caused it to lose its oceans. But how?
NASA’s Deepest 3D Fly-through of the Universe
From the present day all the way to less than 400 million years after the Big Bang, we're seeing how the Universe grew up like never before.
Caroline Herschel Claims Her Comet
Couching her petition in a mix of modesty and expertise, Herschel became the first woman to have a scientific paper read to the Royal Society of London.
Could Our Love of Clothing Promote Sustainable Fashion?
There are some clothes you hang on to, year after year, because they're durable and amazing.
Tidal Power: A Forgotten Renewable Resource?
For well over a century, engineers have proposed harnessing the ocean's tides for energy. But the idea hasn't seemed to register in many places.
Why People Live In Earthquake Zones
Millions of people now live atop fault lines because long ago small communities gathered at fresh water sources.
The Downside to Renewable Energy
Rare earth elements are used in virtually all electronics, and mining them is a messy business.
Lee Smolin: Science Works Because We Care to Know the Truth
Lee Smolin speaks on quantum gravity, the nature of time, the role of ethics in science, and the importance of realism.
What is Memory?
Research suggests that memories may alter the brain's architecture, forming new synapses and strengthening existing ones.