A new study has breathed some fresh air in the former theories that meteorites brought water and other precursors for life to our planet billions of years ago.
Amid escalating tensions between Iran and the West, Iranian Supreme Leader Ali Khamenei said he doesn't trust Covid -19 vaccines from the US and its allies.
A sudden temperature change in the stratosphere above the North Pole has pushed the polar vortex that could lead to harsher winter in the US and Europe in the coming weeks.