Related topics: nasa · asteroid · sun · moon · atmosphere

Ancient Amazonians intentionally created fertile 'dark earth'

The Amazon river basin is known for its immense and lush tropical forests, so one might assume that the Amazon's land is equally rich. In fact, the soils underlying the forested vegetation, particularly in the hilly uplands, ...

Six of nine planetary boundaries now exceeded

A new study updates the planetary boundary framework and shows human activities are increasingly impacting the planet and, thereby, increasing the risk of triggering dramatic changes in overall Earth conditions.

Research suggests Mars has far fewer minerals than Earth

Nearly 6,000 different minerals are known to exist on Earth, but after more than 50 years of investigations, only 161 minerals have been recorded on Mars—a dramatically lower number for a planet that shares much in common ...

Digging water channels in mineral stishovite

Stishovite has the same chemical formula as silica quartz (SiO2) but it has much higher density. While SiO2 is abundant on Earth's crust, it is also a major component of basalt, a type of igneous rock that is rich in iron ...

page 22 from 40