NASA seeks ideas for Mars sample return mission

NASA is rethinking how to bring samples from Mars back to Earth after a review found that current budget constraints would delay the Mars sample return mission to 2040 and cost more than $11 billion.

How loud do cicadas get?

Certain species of cicadas in North America can produce calls reaching levels of around 100 decibels or higher, akin to the noise produced by a lawnmower or a passing jet aircraft.