The four American astronauts aboard the ISS, including the Boeing Starliner crew, spoke to USA TODAY in an exclusive interview Tuesday.

Orbital dynamics show that President Trump’s pledge to land astronauts on Mars couldn’t happen until 2029 at the earliest.

When Ham set off on his space flight in 1961, he paved the way for the first American to go to space months later.

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A group of 18 states with Democratic governments filed a lawsuit Tuesday against President Donald Trump in opposition to his attempt to end birthright citizenship in the United States through an ...