BREAKING: Iowa educators are turning to ChatGPT to help decide which titles should be removed from their school library shelves. trib.al/ranLMAr The ban attempts to comply with a new state law requiring Iowa school library catalogs to be both “age appropriate” and devoid of “descriptions or visual depictions of a sex act.” popsci.com/technology/iow…

Super Bowl LV will be unlike any other for a few reasons. For starters, the stands at Raymond James Stadium won't even be half-filled because of COVID-19. But is that enough to protect the workers, teams, and surrounding community? popsci.com/story/health/c… Another surprising detail you may notice: The U.S. Air Force will be conducting a special bomber flyover at the end of the National Anthem. Here are some flashy facts about the featured planes. popsci.com/story/technolo…

Every day is #EarthDay. On the modern environmental movement's 50th anniversary, here’s a running list of everyday actions you can take to help save the planet:

1. Be mindful of the past while fighting for the future.

Here’s what America looked like in the 1970s, as #EarthDay and the EPA were just getting started: pops.ci/preepa

Welcome to PopSci's #COVID19 Twitter Q&A. We’re here to provide informed, measured answers to your questions about the global coronavirus pandemic. Reply below or use the #AskPopSci hashtag to submit a question. Our DMs are also open. Answering your questions today: Articles Editor @RachelFeltman, Associate Editor @camaldarelli, and Assistant Editor @schodosh. Let's get started:

If Twitter had been around in Charles Darwin’s day, he would have been science’s one-liner king. To celebrate the iconic biologist’s 210th birthday, we turned his saddest, meanest, and funniest quotes into tweets. 👇

#OnThisDay in 1934, the universe produced a collection of organic molecules called Carl Sagan ❤️ “People in the past said the Martian environment was probably too severe for life. In my view that's an exceedingly provincial conclusion.”

In 1972, we had this in-depth conversation with Carl Sagan about life on Mars: pops.ci/carlsagan

The most important science policy issue in every state: pops.ci/stateissues #VOTE A state-by-state breakdown of science policies that could change your community pops.ci/stateissues

Extraordinary physicist Stephen Hawking, a man synonymous with the mysteries of the cosmos, died at home in Cambridge this morning at the age of 76. pops.ci/p5Xyci Even if you weren’t a physicist, you knew Stephen Hawking. You knew he was a genius whose mind grappled with cosmological conundrums as massive as black holes and the existence of the Universe. pops.ci/p5Xyci

You may have spotted some pretty sensational #HurricaneHarvey
images across social media—like this one. But before you share, you might want to check if they're real or fake.