Worlds with liquid water could have formed just 200 million years after the big bang from the remains of the earliest ...

Just three nasal injections of blood cells called platelets helped people whose smell was affected by covid-19 identify new ...

SARS-CoV-2 virus, which emerged in Wuhan, China, in late 2019. The ensuing pandemic has killed millions worldwide. Vaccines have made the condition much less fatal for those who have been vaccinated, ...