Do we need new extra-terrestrial laws? The first commercial spacecraft has landed on the Moon, prompting some experts to warn against people using it for whatever they please.
Ashes of 70 people and one dog lost in space
Fuel leak: The Peregrine lander (above) should have landed on the Moon last week. Glossary
Odysseus - The most cunning of the Greek leaders. The Odyssey, an epic poem about the 10 years he spent trying to return home after the Trojan War, is also attributed to Homer.
Navajo - A Native American people of the southwestern United States. The Navajo Nation is the largest federally recognised tribe in the USA.
Indigenous - Ethnic groups who are the original or earliest-known inhabitants of an area or country: for example, Native Americans in the USA.
UN - United Nations. An intergovernmental organisation based in New York that aims to maintain international peace and security.