<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:news="http://www.google.com/schemas/sitemap-news/0.9"><url><loc>https://www.popsci.com/science/black-hole-collision/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-08T16:35:35-04:00</news:publication_date><news:title>Two supermassive black holes are on a collision course</news:title></news:news></url><url><loc>https://www.popsci.com/science/gold-coin-viking-england/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-08T14:35:00-04:00</news:publication_date><news:title>Metal detectorist finds Viking Age gold coin that might upend history</news:title></news:news></url><url><loc>https://www.popsci.com/environment/what-to-do-if-you-find-a-baby-opossum/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-08T13:32:21-04:00</news:publication_date><news:title>What to do if you find a baby opossum </news:title></news:news></url><url><loc>https://www.popsci.com/environment/humpback-whale-breeding-ground-video/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-08T11:39:32-04:00</news:publication_date><news:title>513 humpback whales gather at massive Caribbean breeding ground</news:title></news:news></url><url><loc>https://www.popsci.com/science/artemis-ii-photos/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-08T10:12:42-04:00</news:publication_date><news:title>16 inspiring Artemis II photos that’ll make you feel like a tiny Earthling</news:title></news:news></url><url><loc>https://www.popsci.com/science/why-childhood-summers-felt-longer/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-08T09:01:00-04:00</news:publication_date><news:title>Why did childhood summers feel endless?</news:title></news:news></url><url><loc>https://www.popsci.com/environment/frigatebirds-inflate-throat-pouch/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T16:16:49-04:00</news:publication_date><news:title>Flirty birds inflate throat pouch to attract a mate</news:title></news:news></url><url><loc>https://www.popsci.com/science/artemis-ii-photos-space-junk/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T15:45:00-04:00</news:publication_date><news:title>Why you can’t see space junk in Artemis II photos</news:title></news:news></url><url><loc>https://www.popsci.com/environment/animals-named-after-famous-people/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T15:15:17-04:00</news:publication_date><news:title>6 famous people with animals named in their honor</news:title></news:news></url><url><loc>https://www.popsci.com/gear/telescope-deals-celestron-gskyer-artemis-ii/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T13:59:17-04:00</news:publication_date><news:title>Grab Amazon’s most popular telescope for just $96 while Artemis II orbits the moon</news:title></news:news></url><url><loc>https://www.popsci.com/gear/specialized-turbo-vado-3-evo-electric-hybrid-commuter-ebike-product-news/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T12:30:00-04:00</news:publication_date><news:title>Specialized introduces Vado 3 EVO, combining robust motor performance with advanced rider convenience and comfort</news:title></news:news></url><url><loc>https://www.popsci.com/health/is-lab-grown-meat-safe/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T09:01:00-04:00</news:publication_date><news:title>Is ‘lab-grown’ meat actually safe?</news:title></news:news></url><url><loc>https://www.popsci.com/gear/thieaudio-hype-4-mkii-iems-cypher-headphones-mid-fi-audio-review/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T07:35:00-04:00</news:publication_date><news:title>THIEAUDIO Hype 4 MKII IEMs &amp; Cypher headphones review: Happy to meet audiophiles in the middle</news:title></news:news></url><url><loc>https://www.popsci.com/science/jell-o-crowd-volume/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-07T06:01:00-04:00</news:publication_date><news:title>Giant Jell-O measures crowd volume in wobbles</news:title></news:news></url><url><loc>https://www.popsci.com/gear/skechers-national-walking-month-sneaker-deals/</loc><news:news><news:publication><news:name>Popular Science</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-06T19:25:48-04:00</news:publication_date><news:title>Skechers just dropped prices on its best walking shoes for National Walking Month</news:title></news:news></url></urlset>