The leaders of Google, Amazon, Apple and Facebook testified before Congress and were confronted with charges of stifling competition and political bias. Nancy Cordes has the latest from Capitol Hill. Source

Lieutenant Madeline Swegle is about to become a U.S. Navy fighter pilot, making history as the first Black female to do so. CBS News has her inspiring story in our series: “Profiles in Service.” Source

The Crew Dragon capsule carrying two NASA astronauts is headed for the agency’s first ocean splashdown in 45 years. Source

A powerful storm is barreling through the Caribbean tonight prompting warnings in the U.S. Virgins Islands and Puerto Rico where about 100,000 are already without power. Source

Mysterious packets of seeds that appear to come from China have now popped-up in mailboxes in all 50 states. Officials are scrambling to figure out their origin. Janet Shamlian reports. Source

Antitrust panel grills Amazon’s Jeff Bezos, Apple’s Tim Cook, Facebook’s Mark Zuckerberg and Google’s Sundar Pichai. Source

The announcement comes after Representative Louie Gohmert tested positive for the coronavirus after frequently forgoing wearing a mask on Capitol Hill. Source

NASA is launching an extraordinarily complex and ambitious mission to Mars​. Source

In the past week, more than a quarter of the U.S. reported a record number of new COVID-19 deaths, and 14 states hit record highs for new cases. There is now a concern about the virus traveling back north. Manuel Bojorquez reports. Source

Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.” Source