Final Delta 2 rocket launches $1 billion ice probe

A United Launch Alliance’s 155th and final Delta 2 roared to life for the last time Saturday carrying a $1 billion NASA satellite into orbit to measure the thickness and extent of polar ice sheets, changes in sea level and the height of forest canopies and clouds.

In pictures: Millions mark World Cleanup Day 2018

Cleanups were organised in 152 countries around the world, with results from just 75 countries on Saturday night already confirming the participation of more than 14.5 million people. Full results of the day, including the amount of waste collected, were set to be released on Sunday.