The vast, tenuous matter between stars—gas, dust, and cosmic rays—fills galaxies. Astronomers study it to trace star formation cycles, while astrophysicists use its composition to understand galactic evolution. Space agencies and researchers benefit, as this medium influences spacecraft travel and reveals the chemical building blocks of new solar systems.
Get alerts when this topic surges in newsletters. Free to start.
Sign up freeExplore more trends:Trending Topics ·AI Trends ·Business Trends ·Finance Trends ·Technology Trends