The heliosphere was first theorised by multiple scientists investigating the concept of cosmic rays and the solar wind in the ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

Hubble observations show a white dwarf star shredding and accreting a volatile-rich, Pluto-like body 260 light-years away. The discovery suggests icy worlds can survive stellar death and hints at our ...