Here's how $4 billion in government money is being spent to reduce climate pollution Most states submitted plans to reduce planet-warming pollution to unlock federal grant money, and they proposed projects to get started. This week, the Biden administration announced the winners. Halle Parker, WWNO
A hydrothermal explosion sends Yellowstone visitors running A video posted on Facebook showed park visitors running from a massive black cloud as it rose. Hydrothermal explosions happen when water suddenly turns into steam underground. James Doubek
It’s not a B movie: scientists say sharks are ingesting cocaine in drug-tainted water Illegal narcotics may be damaging marine wildlife. Sharks are swimming in drug tainted waters, ingesting cocaine according to scientists in Brazil. John Otis
The fate of the most powerful X-ray telescope is in doubt NASA's budget proposal would basically axe the most powerful X-ray telescope in the world, and astronomers are scrambling to save it. Nell Greenfieldboyce
Dark energy — which causes the expansion of the universe — may be changing One of the big mysteries of the universe is how it's expanding. The phenomenon causing that expansion is known as dark energy — and recently, scientists have started to wonder if its changing. Regina Barber
Peekaboo! A baby tree kangaroo debuts at the Bronx Zoo The second baby of a tree-dwelling kangaroo made its public debut this week in New York, poking its pink head head out of its mom's furry white pouch. The Associated Press
Wild horses in the west: A look at America's mustang problem Scientists say there are more horses than the land can support. But some believe the horses should be left to run free.
A study finds that dogs can smell your stress — and make decisions accordingly Researchers made volunteers do public speaking and math on the spot, then showed them a calming video. Then, using sweat samples, glass jars and food bowls, they examined the emotional impact on dogs. Rachel Treisman
Here's a question for you: Do animals lie? A researcher shares examples of deception in the animal kingdom. Barry Gordemer
Astronomers are scrambling to save the world's most powerful X-ray space telescope NASA is facing a tight budget and wants to wrap up the Chandra X-ray Observatory, but astronomers don't want to see the 25-year-old X-ray space telescope mission go. Nell Greenfieldboyce
