Should we be focusing on Earth instead? Katy Perry and five others have made headlines with their all-female space flight. But some say our celebrations are wrong.
A pop star’s journey out of this world
Kissing the ground: ET singer Katy Perry sang the classic song What a Wonderful World during her 11-minute voyage to space on Monday. Glossary
Texas - A US state with a population of 29 million.
Jeff Bezos - The founder of Amazon and one of the world's richest people.
Katy Perry - An American singer and songwriter, born in 1984. She was the world's highest-paid female musician in 2015 and 2018.
Space tourism - Space travel for leisure or recreational purposes, rather than scientific or other reasons.
Resources - A stock or supply of things, such as money or food, that can be used to fulfil a purpose. Earth's natural resources include air, water, soil, minerals, fuels, plants, and animals.
European Space Agency - Founded in 1975, it is based in Paris and has a membership of 22 countries, including Britain.
Universe - Everything. Including all of time and space and its contents.