Where spacecraft go to die
Last year, the existence of an unknown planet in our Solar system was announced. However, this hypothesis was subsequently called into question as biases in the observational data were detected. Now astronomers have used a novel technique to analyze the orbits of the so-called extreme trans-Neptunian objects and, once again, they point out that there is something perturbing them: a planet located at a distance between 300 to 400 times the Earth-Sun separation.
An unknown Mars-to-Earth-mass planet may lurk in the outer reaches of the Solar System.
Space physicists say that they now have a treasure trove of information about how Pluto’s atmosphere interacts with the solar wind.
A trip through the Galaxy, showing relative movement, and the planet’s paths over time.