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

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

Pet’s Dislikes: Baths, getting his nails clipped, and going to the vet. He also hates to be left alone.

There may be something about Earth’s remote places that root many of humanity’s greatest achievements in space. John Glenn (the first American to orbit the Earth) and Neil Armstrong (the first man ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.