Nola Taylor Tillman

A handful of interstellar objects and long-period comets could have scooped up microorganisms from Earth and carried them to worlds around other stars.

Aurorae once classified by human eyes are now being sorted by machines. The change may help astronomers understand how the mysterious features are powered.

Active asteroids lurk in the asteroid belt, unseen until they’re blown to smithereens.

The same algorithms that help control self-driving cars and speech-to-text functionality have helped build a virtual instrument to study the Sun.

Sonification hints at how some Kepler planets may have been configured in the late stages of their development.

A first look at the chemical composition of the interstellar comet Borisov reveals ingredients that look a lot like those found in solar system comets. That’s not likely to last very long.

Radio waves are providing a new way to probe the Sun and suggest that the magnetic field of its corona may be stronger than long thought.

For decades, scientists have tried to figure out why the Moon has a thousand times less precious metals than Earth. Turns out the metals may not have been delivered after all.

Great Britain’s largest impact crater likely lies in the Scottish Highlands. Scientists dispute whether it’s to the west or the east.