Humans could reach new galaxy over four light-years away in just two decades

Solar sail experiments have previously demonstrated that sunlight alone can generate sufficient thrust to propel specially designed spacecraft

Archaeologists uncover ancient two-metre marble statue of Greek goddess Athena

The sculpture stands upon a circular base and is dressed in a finely crafted sleeveless peplos

Nasa forced to SHUT DOWN instrument aboard Voyager 1 ahead of risky 'Big Bang' manoeuvre

Scientists are preparing to keep the 49-year-old spacecraft operating as it continues its journey into interstellar space

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