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Discoveries

: A Way to Mars

Three basic principles govern the course we recommend. The first is the “flexible pat…

A Way to Mars(3): Three basic principles govern the course we recommend. The first is the “flexible path” approach that the Augustine commission advocated and that President Obama and Congress accepted. This strategy replaces the old insistence on a fixed path from Earth t…

A Way to Mars(2): Small Steps Make a Giant LeapThe Augustine commissions report ignited a mighty political fight, culminating in the decision to delegate much of the task of launching astronauts into orbit to private companies [see Jump-Starting the Orbital Economy, by Dav…

: A Way to Mars(4)

In our plan, the astronauts have a month at the asteroid…

: Saturn's storm

A huge storm developed in the northern hemisphere of Sat…

: Two Galaxies Smash

As intergalactic smashes go, this is a big one - two gal…

: Subsurface Sea

Saturn’s hazy Titan is now on the short list of moons t…

Most Distant Object

It was just a tiny galaxy, minding its own business shortly after the big bang. But a chance alignment has brought this ancient galaxy into view. It just might …　

: Picosatellites Personal space

MANY a youngster, Babbage included, has dreamed of going into space. But becoming an astro…

: What's Baking on Titan?

NASAs Cassini spacecraft obtained this image of a feature shaped like a hot cross bun in t…

: Does the Multiverse Really Exist?

There is not one universe—there is a multiverse. In Scientific American articles and book…

: FINDING FOSSILS IN THE GREAT DIVIDE

Paleontologists spend their careers searching for the remains of extinct organisms, and ma…

: Dinosaur named for twin sisters

It was their find in Utah in 2004 that led to the naming of a new species of dinosaur afte…

: Ancient Girl

In a stunning technical feat, an international team of scientists has sequenced the genome…

Trouble and Toil Has Not Slowe

The recent American Geophysical Union's annual meeting featured a talk that presented computer simulations of …　

How Did Insect Metamorphosis E

The earliest insects in Earth's history did not metamorphose; they hatched from eggs, essentially as miniature…　

: Thirst Makes Earth Quake

Earthquakes can be catastrophic natural disasters. But now we know tha…

: Gases Help Cloud

Clouds. They’re fluffy, white, and full of mystery.Although scientist…

Do Our Gadgets Really Threaten Plane

WAS ALEC BALDWIN RIGHT? When the actor tussled with American Airlines personnel last December over his desire to continue playing a game on his phone during tak…　

: Babies Are Born Scientists

Thirty years ago most psychologists, philosophers and psychiatrists thought that babies an…

: The Baby Computer

Oviously children are not doing experiments or analyzing statistics in the self-conscious …

: Evolution and Neurology

If the brain is a computer designed by evolution, we can also ask about the evolutionary j…

Is Your Heart Truly Broken?

Why do we feel such profound physical pain when our social relationships are threatened? Why do we feel so hig…　

: Eating for Health, Not Weight

ALMOST half of Americans are on a diet — not surprising, since two-th…

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