A team of scientists chemically analyzed chassignites and nakhlites, such as the one pictured, two kinds of Martian meteorites found on Earth, of which there are only 35 specimens. Credit: Scripps ...

Almost 20 years ago, New Scientist ran a feature called “Imagine Earth without people”, a thought experiment about what would happen to our planet over thousands of years if humanity suddenly ...

Cement production alone currently accounts for about 8 percent of global CO 2 emissions, so considerable effort is going into lowering that number. Efficiency can be increased, and energy sources can ...