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When Chloe Dalton, a city-dwelling professional with a high-pressure job, finds a newly born hare - endangered, alone and no bigger than her palm - she is compelled to give it a chance at survival. The new book, “Raising Hare,” is the story of their journey together.

Data centers consume large amounts of energy. In 2023, they consumed 4.4% of the nation’s electricity and that percentage is projected to double or triple by 2028, in part due to the proliferation of AI. Much of that power is used to operate computing equipment like servers but nearly half of it is used for cooling systems for the equipment.

The Best of Our Knowledge explores topics on learning, education, and research.Imagine seeing something brighter than 10 trillion suns… seems impossible.Well, scientists have detected a black hole flare that achieved this rare unbelievable brightness.This sighting opens up the possibility of there being more flares of this magnitude.We will learn all about this supermassive black hole flare.

The Department of Energy's mission is to advance the national, economic, and energy security of the United States through scientific and technological innovation. Its aim has been to ensure affordable and reliable energy, address environmental and nuclear challenges, and conduct basic research. Under the Trump administration, its focus has changed dramatically, reflecting the political and economic focus of the agency’s new leadership.

In 1978, green sea turtles were placed on the endangered species list primarily due to human activities like bycatch in fisheries, habitat loss from coastal development, pollution, commercial hunting for their meat, and harvesting of their eggs. Other threats include entanglement in marine debris, being struck by boats, and climate change. For more than 40 years, they teetered on the brink of extinction around the world.

To understand climate change, we can look to Venus and Mars, both surrounded by carbon dioxide—the main greenhouse gas. On Venus, CO₂ traps enough heat to keep the surface at 850°F, while on Mars, a much thinner layer still warms the planet by about 40 degrees. Greenhouse gases work by trapping infrared energy: when the Sun heats Earth’s surface, most infrared escapes through simple gases like oxygen and nitrogen, but CO₂ and water vapor absorb and re-radiate it, sending some back toward the ground. This process keeps Earth warmer and explains why cloudy nights are warmer than clear ones—the same physics behind climate change.

Stars, planets, and even our bodies come and go, since permanence is the one thing that nature seems unable to create. The only thing that is enduring is: repetition. Tune in to hear what is repetitious in our galaxy.

There has much coverage of the plight of sunflower sea stars, the large starfishes with 16 to 24 arms that inhabit the Pacific Coast of North America. A wasting disease that hit the population starting in 2013 killed off more than 90% of the population from Mexico to Alaska. Only recently has the underlying cause of the disease been identified: a specific bacterium of the Vibrio genus. But sunflower sea stars aren’t the only species that have fallen victim to the wasting disease. In fact, it has killed billions of sea stars in up to 20 species.

The Best of Our Knowledge explores topics on learning, education and research.The East African Savannah is known to be the cradle of humanity.Now, researchers are presenting a different history of homo sapiens, theorizing they evolved all across the continent including in rainforests as early as 150,000 years ago.[rerun]

The universe is shaped by four fundamental forces, including gravity and electromagnetism. The latter’s strength is described by the dimensionless constant alpha (about 0.008), a value long puzzling to scientists such as Wolfgang Pauli. In 2010, astrophysicists analyzing quasar light found that alpha appeared slightly larger in one direction of the sky and smaller in the opposite, suggesting this supposedly unchanging constant might vary across the cosmos. Tune in to hear how such a directional shift would challenge Einstein’s relativity, hint at an even larger — possibly infinite — universe with fundamentally different cosmic “neighborhoods,” and suggest that life exists here partly because our region of the universe is unusually suited to it.