No matter where we go in the universe, we're going to need water. Thus far, human missions to Earth orbit and the moon have taken water with them. But while that works for short missions, it isn't practical in the long term. Water is heavy, and it would take far too much fuel to bring sufficient water to sustain long-term bases on the moon or Mars. So we'll have to use the water we can extract locally.

Fortunately, water is a common molecule in the universe. Even the moon has plenty of water to sustain a lunar colony. The only real challenge is how to extract it. As a recent study published in Acta Astronautica shows, that might be as easy as popping things into a microwave oven.

Although water is present in tiny quantities all over the moon, it is most concentrated in the polar regions.

The European Space Agency's (ESA) Euclid satellite completed the first part of its long journey into space on May 1, 2023, when it arrived in Florida on a boat from Italy. It is scheduled to lift off on a Falcon 9 rocket, built by SpaceX, from Cape Canaveral in early July.

Euclid is designed to provide us with a better understanding of the "mysterious" components of our universe, known as dark matter and dark energy.

Unlike the normal matter we experience here on Earth, dark matter neither reflects nor emits light. It binds galaxies together and is thought to make up about 80% of all the mass in the universe.