The crew of Artemis II is expected to pass a historical marker in space exploration today. Here’s how that “one small step” could move humanity forward technologically — and the geopolitical underpinnings of what this really means.

Astronauts are flying by the Moon’s far side and setting records. Nature is in Houston with the mission’s scientists.

The world has tracked the journey of NASA’s Artemis II mission for five days. The four astronauts have launched into space, tested life support and other important systems of their Orion spacecraft, tangled with the vehicle’s toilet,

What does Earth look like from the vantage point of Artemis II's astronauts? NASA released a handful of images on Friday of Earth, taken from space by Commander Reid Wiseman and others aboard the

On April 1, the Artemis II crew began their 10-day journey to orbit the moon. Here's when and where the crew will return.

It transports far more than 100 times as much water as all of the Earth's rivers combined: The Antarctic Circumpolar Current rushes around the southern continent unhindered by land masses and is therefore a fundamental component of the climate system.

NASA has released a slew of photos captured by the Artemis II crew as they hurtle through space toward the moon — including an updated version of the iconic “Blue Marble” shot snapped by the Apollo 17 crew more than 50 years ago.

Our breakdown of 7 hidden science lessons in the stunning photo taken by an astronaut on the Artemis II mission.