Millions watched on April 1 as the Artemis II mission sent humans back to the moon for the first time since 1972. Here's the day in pictures.

Remains from three Stone Age children in Vietnam may challenge long-standing ideas about the origin of syphilis, scientists say.

Chemists say they’ve found a way to turn breadcrumbs into hydrogen, potentially offering a sustainable alternative to one of the most common chemical manufacturing processes.

For reasons that are still unclear, climate models underestimate the growing gap between the amount of energy Earth receives from the sun and the amount the planet radiates into space.

The experimental Hukeda-2 satellite and its highly flexible robotic arm have passed a major refuelling test in low Earth orbit. The demonstration is the latest step toward China significantly expanding the longevity of its spacecraft.

Existing LLM architecture may not support the problem-solving capabilities needed to underpin human-level AI, the authors of a new study argue.