Tanzania says Kilimanjaro blaze contained

An inferno on the slopes of Africa's highest mountain Kilimanjaro was almost under control Saturday, six days after it broke out, authorities said.

The colorful walls of an exposed impact crater on Mars

Impact craters have been called the "poor geologists' drill," since they allow scientists to look beneath to the subsurface of a planet without actually digging down. It's estimated that Mars has over 600,000 craters, so ...

Halt post-disturbance logging in forests

Storms, fires, bark beetles: Many forests around the world are increasingly affected by these and other natural disturbances. It is common practice to eliminate the consequences of these disturbances—in other words, to ...

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