The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...
led to Nasa launching the twin Voyager 1 and 2 spacecraft in 1977 on a "Grand Tour" of the outer Solar System. Voyager 1 flew past Jupiter in 1979 and Saturn in 1980, eschewing Uranus and ...
Mars will be making its closest approach to Earth in two years, and thus, the mighty red planet, named for the god of war ...
A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system, a ...
A new study, currently under review for publication, suggests that an ancient cosmic visitor might have significantly altered the orbits of our solar system's giant planets. Scientists propose that ...