Stars ~ Stars form in the densest regions of the interstellar medium, or ISM, called molecular clouds. The ISM is the name given to the gas and dust that exists between the stars within a galaxy. It is 99% gas and 1% dust, by mass. Molecular clouds are perfect star-forming regions because the combination of these atoms into molecules is much more likely in very dense regions.
Beautiful... Stars form within nebula NGC 2170, which lies in the constellation of Monoceros (The Unicorn). A dark nebula, such as this one, provides raw material for the star formation going on inside them. The newly formed, massive blue stars seen here continue to push away traces of the dust that previously hid them from view. The material that remains will eventually disperse in the interstellar medium.
Malatesta will be three miles from the shuttle launch pad for NASA's final space shuttle program launch to the International Space Station. Description from usbuzzblog4.blogspot.com. I searched for this on bing.com/images
New simulations of the magnetically powered jets produced by rotating supermassive black holes in the cores of galaxies show how, with enough power, the corkscrewing magnetic fields (white squiggles) can force their way through surrounding gas and drill out of the galaxy, channeling hot gas into the interstellar medium. Image credit: Simulations by Alexander Tchekhovskoy, UC Berkeley, and Omer Bromberg, Hebrew University.
The Triangulum Emission Nebula - NGC 604 Located 2.7 million light-years away in the constellation Triangulum lies the massive nebula known as NGC 604. Though such nebulae are common in galaxies, this...