California has 60,000 black bears, and they are venturing far from their usual habitat in search of food and shelter. It’s the humans who have to adapt.

On the 20th anniversary of Pluto’s infamous demotion, Mike “Pluto Killer” Brown explains why any reversal of that decision would be driven more by nostalgia than science

YouTube video by Caltech Astro

Triton’s destructive wake exposed clay-like minerals from within ancient icy worlds, now reaccreted as Neptune’s inner moons.

New findings from Caltech researchers suggest Neptune's smallest satellites formed from the shattered remains of an original moon system that was destroyed when Triton was captured by Neptune's gravit...

Mike Brown reviews "Strange New Worlds: The Search for Alien Planets and Life Beyond Our Solar System," by Ray Jayawardhana

The satellites of Uranus orbit in a low-eccentricity, equatorial plane that is tilted by 98° relative to the solar system—a geometry that mirrors U...

With a recent increase in bear sightings and incidents in rural Japan, local communities are taking steps to prepare for such encounters. In the small city of Yaita, officials and residents worked tog...