Our Moon might not always be the dedicated companion to Earth that it is now. An international team of researchers has proposed a hypothetical new type of world it calls a “ploonet”: a former moon ...

In the Chinese science fiction film The Wandering Earth, recently released on Netflix, humanity attempts to change the Earth’s orbit using enormous thrusters in order to escape the expanding sun – and ...

In about five billion years, the Sun will begin to die, rapidly expanding and incinerating the Earth in its death throes. That’s not for a while, but any humans left will need to plan well in advance ...