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From the rocky fragments in Saturn's rings to Earth's own moon, our solar system bears signs of an ancient demolition derby. Planetary scientist Erik Asphaug describes the role of impacts in our planetary neighborhood, and looks ahead to a possible comet collision on Mars.

The Sonoran Desert, which spans some 100,000 square miles in southwestern North America, is one of the most diverse desert ecosystems in the world. Host Ira Flatow and guests discuss some lesser known desert creatures, and explore the secret life of that American southwest icon, the saguaro cactus.

With samples from over 1,800 separate meteorite falls around the world, ASU's Center for Meteorite Studies claims the world's largest university-based meteorite collection. Meenakshi Wadhwa explains how meteorites can teach researchers about the history of the solar system.

Same-sex couples in the military will be watching closely now that the U.S. Supreme Court is considering the constitutionality of the Defense of Marriage Act. Anxiously awaiting a decision are Army lieutenant colonel Heather Mack and her wife, Ashley Broadway, who've been together for 15 years and have two children. They say repealing DOMA would help many enlisted same-sex military couples, who don't receive funds to move non-military spouses from one base to the next. But most of all, Broadway and Mack say repealing DOMA would give them the recognition they crave: to have their marriage officially recognized in every state in the country. Jessia Jones of WUNC talked with the couple.

Music producer Phil Ramone, who worked on albums by Bob Dylan, Paul Simon, Stan Getz and Joao Gilberto, has died at the age of 72. Weekends on All Things Considered guest host Laura Sullivan looks back at some of the huge records that benefitted from his magic touch.

After all the acrimony and debate, many Americans still don't know whether their states are going to expand Medicaid or set up health care exchanges. A lot of the confusion over the Affordable Care Act comes, in part, from a commanding "misinformation and disinformation" campaign.

New York City has nearly 11,000 pay phones, and a new campaign is trying to turn about 5,000 of them into time capsules. Host Rachel Martin talks with David Droga, creative chairman of ad agency Droga5, about the "Recalling 1993" campaign.

Already the poster child for his country's so-called New Wave of filmmakers, the director takes another realistic dive into the post-Communist Eastern Bloc with Beyond the Hills. Though he hesitates to call it a straight metaphor, the symbolism of the film is uncanny.

The mostly forgotten explorer Paul du Chaillu first introduced the world to gorillas. His methods were attacked and his work discredited during his lifetime, but he also experienced fame and redemption. Now, there's a new book that tells his story.

A study found that 1 in 5 adults ages 20 to 55 who survive strokes will die within 20 years of the event — a rate much higher than doctors expected. The findings mean doctors need to pay a lot more attention to younger stroke survivors.