The Biden administration is negotiating with Pfizer Inc. to buy an additional 500 million Covid-19 vaccines to donate globally, a person familiar with the matter said, doubling the government’s commitment to helping less-wealthy countries.

Algorithms that rank and recommend posts based on "likes," shares and comments tend to amplify low-quality content

Go, Dragon! The crew of 'non-astronauts' landed off the Florida coast Saturday night, concluding an historic orbital space mission.

People in Turkmenistan are struggling to get treatment in a system that denies there are any cases.

Two days before the rally, Trump said "our hearts and minds are with the people being persecuted so unfairly relating to the January 6th protest."