21 November 2017
First interstellar asteroid looks nothing like expected
... amounts of water or ice. It is likely that its dark surface is now reddened due to the effects of irradiation from cosmic rays as it has been traversing interstellar space. In fact our Solar System could be the first star system that...
11 December 2018
Voyager 2 joins its twin in interstellar space
.... Coupled with measurements from the probes other instruments – the low energy charged particle instrument, the cosmic ray subsystem and the magnetometer – it was enough evidence to support the conclusion that Voyager 2 has crossed the...
04 November 2019
Its official! Voyager 2 has passed into interstellar space
... of Voyager 1 in 1977, observed a sharp decrease in the intensity of low-energy ions and a simultaneous increase in the intensity of cosmic rays, indicating that the craft made the crossing from the outer edge of the heliosphere, called the...
14 February 2020
Arrokoth helps resolve longstanding controversy on Solar System evolution
..., Grundy and colleagues offer several suggestions as to how methanol could have formed on this object, including formation by cosmic ray irradiation of mixed water and methane ices Despite the individual nature of each study, there was one...
