Earth secrets

Things we don not know for sure – how it’s happening, how was created, how it is. Questions that people do not know the answer!

Volcanoes in Space

Two sorts of geologic features are found on most solid planets and moons in our solar system. They are impact craters and volcanoes. We talk about volcanoes on worlds beyond Earth … Spacecraft exploring our solar system have found volcanoes on other planets and moons. The tallest volcano in the solar system — Olympus Mons …

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Depleted Uranium

A substance called “depleted uranium” is denser than lead and can penetrate metals more effectively — so it’s now being used in bombs and bullets. But it might affect human health and the environment long after a conflict is over. Depleted uranium shells left from US air strikes on Sarajevo. (c) AP/Hidajet delic. Photo courtesy …

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Genetic clocks steven benner

Genetic Clocks

A human’s genes provide a blueprint for making that human — and they can also tell time. We present the work of Steven Benner using genetic clocks and fossils to figure out what certain genes do… The human genome — or blueprint for life — is made up of thousands of genes . . . …

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How do herds form?

Nature enthusiasts are fascinated by herds of animals like elephants and elk But you’ll probably never see a herd of cats. Why some animals gather together as herds? Many animals display herding — or group-forming — behavior . There are three main ideas as to why. Protection from predators is probably the main reason. With …

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