NASA journeys to the metal-rich asteroid Psyche

It's a world like no other: a metal-rich asteroid that could be the remnants of a small planet, or perhaps an entirely new type of celestial body unknown to science.

NASA set to journey to a metal-rich asteroid

It's a world like no other: a metal-rich asteroid that could be the remnants of a small planet, or perhaps an entirely new type of celestial body unknown to science.

Sensitive instruments to explore metal-rich asteroid

At the very center of the Earth is a core of metal—so hot and so deep down as to be unreachable and impossible to study directly. But we might learn more about it and the cores of other Earth-like planets by studying the ...

Why climate change is a national security risk

Climate change is affecting practically everything on Earth, from natural systems to human endeavors. National security is no exception. The National Intelligence Council has found that "climate change will increasingly exacerbate ...

Will solar panels work at Proxima Centauri?

Solar panel technology has advanced significantly in recent years, to the point where solar energy is the fastest-growing renewable power source. The solar panels we have today are a by-product of those used in space.

Shining a light on tiny, solar-powered animals

Animals and plants need energy. Some animals get energy by eating other animals, and many plants harvest the energy in sunlight through photosynthesis. However, in the ocean, there exists a remarkable group of small, worm-like ...

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