Morning Overview on MSN

NASA’s latest Mars mission could reveal why the red planet dried out

Mars once looked far more like Earth, with a thicker atmosphere and liquid water pooling on its surface, yet today it is a ...

How Earth's mantle locked away vast amounts of water in early magma ocean

Some 4.6 billion years ago, Earth was nothing like the gentle blue planet we know today. Frequent and violent celestial impacts churned its surface and interior into a seething ocean of magma—an ...

Widespread sediments beneath Greenland make its ice more vulnerable to warming

In an age of rising sea levels, as polar ice sheets melt in a climate warmed by fossil fuel emissions, climate modelers are racing to understand what the future might hold for coastlines around the ...
ZME Science on MSN

Scientists just mapped 16 massive Martian rivers that defy geological rules by flowing without plate tectonics

We’ve known for a while that Mars was once a wet world. But there’s always been a geological puzzle regarding how and where ...