Ecologists describe the ability of an environment to sustain a species' population as its "carrying capacity". It's an estimate of the number of individuals from any given species that can survive long-term, based on the resources at hand and the rate at which those resources regenerate.

A new study finds Earth has already exceeded its sustainable population limit, raising concerns about food, climate, and global stability.

The crew just surpassed the record previously set by the Apollo 13 astronauts in 1970 for the farthest distance ever traveled from our home planet.

The Artemis II astronauts surpassed the Apollo 13 record of 248,655 miles from Earth on Monday at 12:56 p.m. Central time.

The astronauts lost connection with Nasa while behind the Moon, as they passed the furthest point humans have ever travelled from Earth.

The Artemis II mission is a gender-balanced and Earth-centered mission, but its main claim to fame is taking it just a few hundred miles further than Apollo 13, and getting no closer than 4000 miles to the moon,

Scientists have discovered many planets similar to Earth beyond our solar system. These exoplanets can be up to 10 times larger than Earth, which might be ideal for our growing population. But with more mass comes more gravity,

The global climate has changed drastically over the course of the 58 years that separate these two ‘Earthrise’ photographs.

NASA mission managers hold a briefing as the crew prepares for tomorrow night's scheduled splashdown. The Artemis II team is finishing a historic 10-day lunar journey, marking the first time humans have seen the Moon up close since 1972.