US President Donald Trump vowed Monday to "plant the Stars and Stripes on the planet Mars" but made no mention of NASA's planned return to the Moon, heightening speculation about his space strategy.

President Donald Trump made a bold promise to America minutes after taking the Oath of Office: pledging that an American flag ...

However, making a territorial claim over another planet is not as simple as being the first to plant a flag. Dr Jill Stuart, an expert on the law of space exploration from the LSE, told MailOnline ...