The Sciences

After multiple explosive endings to previous high-altitude tests, a prototype rocket for voyages to the Moon and Mars finally touched down safely

Within a decade or two, we could observe the cosmic expansion, not as a series of snapshots but as a very slow-motion film

Tufted titmice scuffle more vigorously in front of a crowd—even if some of the onlookers are woodpeckers

It seems like the males will do anything, even fake nearby danger, to get females to stick around to mate.

America’s first woman in space worked to make STEM education more equitable and inclusive, with a special emphasis on encouraging participation by girls

And ecologist Suzanne Simard says they need our help to survive

This past pandemic winter, when the world felt doubly dreary, our avian friends were especially high on many peoples’ happy lists

It was important either way, because the experiment that generated it was breathtakingly precise

Some are blasted out of galaxies by interactions with black holes; others, which orbit supermassive black holes, can smash together in titanic explosions

Proliferating cichlids may specialize using regulatory DNA

When time began; superior bread baking

A new chart of millions of galaxies across 11 billion years of cosmic history helps to answer some of the biggest cosmological questions