A study of thousands of space rocks may explain why a common type in space is so uncommon on our planet.
A system 130 light-years away contains a gas integral to life processes on Earth.
A star system 5,000 light-years from Earth, surrounded by layers of dust, could help scientists better understand the final stages of stellar life.
The circumgalactic medium, a vast gaseous halo surrounding galaxies, could be crucial to the evolution of star-forming galaxies like our own.
