A new NASA spacecraft has started tracking the particle streams that can make a massive solar flare dangerous while mapping the Sun’s shield. That pairing connects short-term storm warnings near Earth with the far boundary that helps block harsher radiation from deep space.

The Artemis II crew will be making a lunar flyby today, bringing them 4,070 miles to the moon's surface. Here's how to watch.

The Artemis II crew flew farther from Earth than any humans in history as they passed over the far side of the moon on Monday night.

Scientists have long studied the sun, our solar system’s life-giving star, trying to understand its behavior, solar flares, and how it affects Earth. While we all rely on the sun for warmth and light, there is still much about it that remains a mystery.