Scientists have created a new 3D map of "mega ripples" on the seafloor caused by the Chicxulub asteroid impact that wiped out ...

The assault, which the mayor called the largest on Russia’s capital since the war began, was a reminder of Ukraine’s power to strike as its president proposes an air truce. By Marc Santora ...

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.