The origins of life on our planet remains one of science’s great mysteries. Now, a NASA mission that brought a piece of an ancient asteroid back to Earth has revealed that the building blocks of life may have been scattered throughout the solar system billions of years ago. Ali Rogin reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Beavers and the dams they build are not always embraced in the areas where they do their work. But there's a growing recognition that they also are building a kind of natural infrastructure that helps with water management and the climate. Science correspondent Miles O'Brien went to see the beavers at work during their busy season and has the story for our ongoing coverage of Tipping Points. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Trump and Republican candidates made rolling back federal protections for transgender people a big issue, spending hundreds of millions of dollars on TV ads, much of it focused on gender-affirming care for minors. Despite the attention, a new study finds that gender-affirming medications are very rarely prescribed to adolescents. John Yang speaks with KFF’s Lindsey Dawson to learn more. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Eighty percent of all global trade travels by sea, and the ships carrying those goods account for 3 percent of global greenhouse gas emissions. Now, some shipping companies are taking a new tack as they try to navigate the industry to sustainability on the high seas. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Ever since the deadly wildfires began in Los Angeles two weeks ago, residents have largely turned to one app for the most up-to-date information. It’s called Watch Duty and Stephanie Sy spoke to two members of the small team that makes it possible. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Scientists say they have tapped into an extraordinary archive of the Earth’s climate in the ice deep beneath Antarctica. They hope it will help them understand both how the climate changed in the past, how it’s changing now and how it may change in the future. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Scientists have found the beginnings of a young universe that may offer insights into the beginnings of our own Milky Way Galaxy. Geoff Bennett and Miles O'Brien discussed why scientists are excited by the discovery, one that has a little holiday sparkle of its own, so to speak. PBS News is supported by - https://www.pbs.org/newshour/about/funders

With the growth of offshore wind farms there are many questions surrounding their impact. In the second of two stories about what researchers are finding, science correspondent Miles O'Brien takes us to New Bedford, Massachusetts, where local officials are trying to strike a balance between greener, renewable energy and a potential impact on the critical fishing industry in that region.

PBS News is supported by - https://www.pbs.org/newshour/about/funders

The Biden administration just approved a wind farm project off the coast of Massachusetts. It's the eleventh commercial-scale wind project of its kind to get approval and comes at a key moment for the sector, as President-elect Trump, a frequent critic, prepares to take office. Miles O'Brien reports.

PBS News is supported by - https://www.pbs.org/newshour/about/funders

A type of white-tailed deer unique to the Florida Keys has been on the endangered species list for nearly 60 years. Only about 800 Key deer remain, and their habitat is under growing threat from rising sea levels. William Brangham reports for our series, “Saving Species.” PBS News is supported by - https://www.pbs.org/newshour/about/funders