Australia weighs cat curfews and neutering requirements to rein in feral felines Tanya Plibersek, Australia's Minister for the Environment and Water, declared "war" on feral cats officials say harm other species and carry disease. Critics say the feline threat is overblown. Joe Hernandez
How to see a newly-discovered green comet this week, before it vanishes for 400 years A newly-discovered green comet is zipping by Earth and is now visible for the first time since before Galileo invented his telescope. Linah Mohammad
An Arab astronaut made history in space. Now his country has its sights on Mars The United Arab Emirates celebrated after Emirati astronaut Sultan Alneyadi splashed down to Earth following six months in space, a milestone for its growing space program. Aya Batrawy
Archeologists in Norway found an arrow that was likely trapped in ice for 4,000 years The arrow was found at a site on Mount Lauvhøe that was previously covered in ice. The new discovery adds new "time depth" to the research site. Dustin Jones
Archaeologists in Turkey have identified massive structures below a Roman-era castle The multistory, below-ground structures in Diyarbakir — ID'ed by using ground-penetrating radar — may have sheltered some 10,000 people during wartime many centuries ago, archaeologists believe. Gokce Saracoglu
Scientists look at the progress made toward understanding — and treating — long COVID Scientists gathered this week to unpack what we know about the underlying cause of long COVID and potential treatments. For many of the researchers here, it's the first time major gathering Will Stone
The science that goes into emergency evacuation orders NPR's Mary Louise Kelly talks with Craig Fugate, former director of the Federal Emergency Management Agency of the U.S., on how officials decide to issue an evacuation order during natural disasters. Mary Louise Kelly
An AI quadcopter has beaten human champions at drone racing The achievement marks the first time an artificial intelligence system has been able to regularly beat humans in a real-world competition and could lead to better drones in the future. Geoff Brumfiel
It's big! It's bright! It's a rare blue supermoon! Here's how to check it out The Earth's lunar sidekick will appear extra big and bright as it reaches its fullest stage on Wednesday. It's not just the biggest supermoon this year, it's also a rare blue supermoon. Emily Olson
In Arizona, paleontologists are shifting their focus to microfossils Your whole idea of the Triassic period is about to be disrupted. Paleontologists are shifting their focus from dinosaurs to fossils so small they have to be reassembled under microscopes. Melissa Sevigny