Interstellar medium
Videos
The interstellar medium is the matter and radiation that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and co
Voyager 1 is the first human made object to reach the interstellar medium.
Three-dimensional structure in Pillars of Creation.
Interstellar medium and astrosphere meeting
This light-year-long knot of interstellar gas and dust resembles a caterpillar.
Star formation
Videos
Star formation is the process by which dense regions within molecular clouds in interstellar space—sometimes referred to as "stellar nurseries" or "star-forming regions"—collapse and form stars. As a
Westerhout 51 nebula in Aquila – one of the largest star factories in the Milky Way (August 25, 2020)
Hubble Space Telescope image known as Pillars of Creation, where stars are forming in the Eagle Nebula
Assembly of galaxy in early Universe
ALMA observations of the Orion Nebula complex provide insights into explosions at star birth.