Scientists say that there is a wall separating the solar system from the rest of the galaxy. The famous New Horizons spacecraft finally gets a glimpse of this boundary, according to a new study.
NASA's Voyager 2 Saturn probe had been monumental in understanding Saturn and its moons and it has paved the way for new Saturn missions like Cassini.
We certainly know how long our own day is, and Mars is not much longer (24 hours and 40 min). The closest planet to the Sun, Mercury's own incredibly long day lasts more than 1,407 hours. What's interesting, however, is that astronomers know all this with near certainty. That's not the case for Saturn, on the other hand, whose day length has remained something of an enigma.
Earlier this month, NASA's Jet Propulsion Laboratory (JPL) confirmed that the unmanned spacecraft Voyager1 has slipped into interstellar space - a first for a manmade observational tool. However, researchers are now refuting this claim, saying that we won't truly know if this spacecraft has gone interstellar until late 2015.
Three separate shock waves from solar activity have helped NASA confirm that the Voyager 1 unmanned craft has made its way into interstellar space - drifting past the outer layers of the Sun's heliosphere.