Milky Way's Home Supercluster Found

New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life. Lee Billings reports 

A dwarf galaxy near the Milky Way may consist of more dark matter than regular matter.* Clara Moskowitz reports 

NASA’s James Webb Space Telescope is hard at work answering our biggest questions about the birth of our universe and faraway galaxies. But some astronomers are pointing its powerful eyes much closer to home. In this episode, Caltech astronomer Katherine de Kleer explains how Web ...  Show more

NASA is an exploration agency, and one of our missions is to know our home. In the 1960s, NASA astronauts orbiting the Moon captured a revelatory view of Earth. Today, NASA explores our home planet with a fleet of dozens of spacecraft. In this episode–the first in a miniseries al ...  Show more

Sarah Al-Ahmed, the host of Planetary Radio, marks her 100th episode with a look back at the defining moments of the past 100 weeks of space exploration. We'll revisit previous Planetary Radio interviews, including the launch of ESA's Juice mission to the icy moons o ...

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