The government is set to declare oxygen as an “essential drug”, considering its importance in patient treatment, said Prof Sayedur Rahman, special assistant to the chief adviser for the health ministry, yesterday.

Says govt taking steps to ensure oxygen supply at upazila level

Rocks on the surface of Mars have provided the best clue yet that the red planet once had an atmosphere rich in oxygen.

Stunned scientists announce the unexpected discovery of large quantities of oxygen on a comet which streaked past the Sun in August with a European spacecraft in tow.

Brazilian workers remove more than 33 tonnes of dead fish from the 2016 Olympic rowing and canoeing venue in Rio de Janeiro.