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
Solar sail experiments have previously demonstrated that sunlight alone can generate sufficient thrust to propel specially designed spacecraft
The sculpture stands upon a circular base and is dressed in a finely crafted sleeveless peplos
Scientists are preparing to keep the 49-year-old spacecraft operating as it continues its journey into interstellar space