NASA is testing a system designed to protect the Earth from a massive meteor strike. WSJ science writer Robert Lee Hotz joins host Zoe Thomas to discuss how the technology works and what to expect from the test run now underway. Learn more about your ad choices. Visit megaphone.fm/adchoices

The Wall Street Journal's personal tech team has compiled a list of their favorite gadgets to give as presents this year, beyond laptops, gaming devices and smartphones. Personal Tech Editor Wilson Rothman, Personal Tech Columnist Nicole Nguyen and Personal Tech Reporter Dalvin Brown join host Zoe Thomas to discuss the gear that stood out to them in 2021. Learn more about your ad choices. Visit megaphone.fm/adchoices

Sarah Guo, a general partner at the venture-capital firm Greylock, speaks with host Zoe Thomas about diversity in Silicon Valley, cybersecurity and how the pandemic changed the environment for early-stage investing. Learn more about your ad choices. Visit megaphone.fm/adchoices

The Wall Street Journal reports exclusively that NBCUniversal is considering pulling its content from Hulu and keeping it solely on its own streaming platform, Peacock. Cable and media industry reporter Lillian Rizzo joins host Zoe Thomas to discuss what it says about the current streaming landscape. Learn more about your ad choices. Visit megaphone.fm/adchoices

As more people invest in cryptocurrencies, hackers are targeting retail investors, emptying their digital wallets and making off with their holdings. WSJ Pro Cybersecurity reporter David Uberti joins host Zoe Thomas to explain how the hack works and why regulators and cellphone providers are at odds on what to do about it. Learn more about your ad choices. Visit megaphone.fm/adchoices