Welcome, students, teachers, and viewers worldwide to CNN STUDENT NEWS.
Today's is the 14th anniversary of the September 11, 2001 terrorist attacks in the U.S.
And our in-depth coverage of that historic and tragic event begins in just a couple of minutes.
First up, a natural disaster in Japan.
Parts of the eastern mainland are unrecognizable.
A tropical storm named Etau made landfall there Monday, dumping as much as two feet of rain over a region that had already seen daily rainfall for weeks.
Officials say more than 170,000 people have been evacuated.
The Japanese military has rescued dozens of people from their homes and more rain and flooding are expected-flooding being the most deadly part of storms.
The Pacific island nation is especially prone to typhoons, tsunamis and earthquakes.
From Japan, we're moving over to South Africa where a professor claims to have discovered a new species of human relative.
In 2013, an amateur caver found a fossilized jawbone deep in an underground chamber.
It led to the largest discovery of its kind in the continent of Africa.
And the director of the recovery expedition says the find turns science on its head.
This is like opening up Tutankhamen's tomb.
Berger and his team of scientists say they've uncovered a new species of the human family tree.
They call it Homo naledi.
What they found was extraordinary-a chamber of more than 1,500 fossilized bones,coming up with the controversial conclusion that this is a burial ground, and that Home naledi could have used fire to light the way.
That's extraordinarily human-like.
It is in part superficially, short fingers, long thumb.
Homo naledi is not human, but at times comes close.
The original fossils are a strange mosaic of ancient and surprisingly modern, a brain no bigger than an orange, but feet almost identical to ours.
And every one of these tells a story.
Every one of them is a mystery to science.