29/08/2016

A changing sun, a changing climate?

The sun's impact on our planet's climate has recently been a hotly debated topic in the context of climate change. The controversy around this issue has led scientists across Europe to dig deeper into the claim that solar ...

Meteorite impact on a nano scale

A meteorite impacting the earth under a grazing angle of incidence can do a lot of damage; it may travel a long way, carving a trench into the ground until it finally penetrates the surface. The impact site may be vaporized, ...

Counting down to the new ampere

After it's all over, your lights will be just as bright, and your refrigerator just as cold. But very soon the ampere—the SI base unit of electrical current—will take on an entirely new identity, and NIST scientists are ...

Harmful algal blooms in their true colors

Explosive growth of cyanobacteria, also called blue-green algae, is nothing new. In fact, such cyanobacteria probably produced the original oxygen in Earth's atmosphere billions of years ago.

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