NASA's Lucy in the sky with … asteroids?

A little over 4 billion years ago, the planets in our solar system coexisted with vast numbers of small rocky or icy objects orbiting the Sun. These were the last remnants of the planetesimals – the primitive building blocks ...

Human ancestor 'Lucy' was a tree climber, new evidence suggests

Since the discovery of the fossil dubbed Lucy 42 years ago this month, paleontologists have debated whether the 3 million-year-old human ancestor spent all of her time walking on the ground or instead combined walking with ...

Nanoparticles present sustainable way to grow food crops

Scientists are working diligently to prepare for the expected increase in global population—and therefore an increased need for food production— in the coming decades. A team of engineers at Washington University in St. ...

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