In order to establish relative dates, geologists must make an initial assumption about the way rock strata are formed. It's called the Principle of Original Horizontality, and it just means what it sounds like: that all rock layers were originally horizontal. Of course, it only applies to sedimentary rocks. Recall that sedimentary rock is composed of... sediments, which are deposited and compacted in one place over time.
Larry Nassar sentenced to 60 years in prison Gymnastics December 7, 2017 The former US Gymnastics doctor was given a 60-year sentence in federal prison on child pornography charges.
On this day in 2012, former Egyptian president Hosni Mubarak is found guilty of failing to stop the killings of hundreds of anti-government demonstrators during the 2011 popular uprising that forced an end to his nearly 30 years in power. The 84-yer-old Mubarak was sentenced to life in prison. Born in...