The mysterious phenomenon resembles green sand dunes in the sky.

The paintings once dazzled and enlightened mid-century planetarium-goers.

For this community of “space cowboys,” entrepreneurs, and enthusiasts, a fireball streaming across the sky offers big risks and bigger rewards—and new tech is heating up the competition.

Why astronomers keep putting them in the same places.

He got into a lot of trouble.

Robert Lawrence Jr.'s accomplishments are finally being recognized.

The massive South Island stargazing reserve is a respite from light pollution for many species, including our own.

Many viewers want to bask in synchronous fireflies' glow. Ecologists want to ensure that the insects aren't hurt in the process.

The good old days of firefly hunting featured branded merch, 10-year-old kingpins, and a certain disregard for ecology.

Thousands of years of attempts to understand our place in the cosmos.

A conservation biologist in Argentina once hosted one of the animals in her living room, but finding them in the wild has proven far more difficult.

The evolutionary marvel mates in love trains, can swim in the ocean, and even uses jazz hands as a defensive tactic.

A remote wedge of wilderness is home to trailblazing elephants, epic trees, and the only chimps and gorillas known to share a meal.

It is a key part of local culture, and looks like it was colored with a crayon.

From glasswing butterflies to vanishing octopuses, evolution is a mad scientist.

Despite traditional and modern protections, Palau's massive mollusks are at risk.

Meet the generally harmless translucent residents of Thoreau's favorite giant puddle.

The wildly uncharismatic buffy-tufted-ear marmoset needs a boost.

Understanding how locals really view the world's weirdest primate may be key to protecting it.

A research station in India is on call 24/7 to aid wayward reptiles in need.

A conservation team wanted to know if removing killer bees would make life easier for Lear's macaw.

And how scientists tried to free this formic Donner Party.

Tiny gastropods, huge undertaking.