What are the differences between Intergalactic Medium, Interstellar ...
Oct 29, 2021 · The interstellar medium (ISM) is, as you say, the gas (and dust) in between the stars, within a galaxy. It consists of molecular, neutral and ionized gas, with densities ranging from $\sim …
Interstellar Dust properties - Astronomy Stack Exchange
Mar 15, 2021 · While practicing for an upcoming examination, I ran into this problem: Which of the following best describes dust grains in the interstellar medium: They are a few hundred nanometers …
How cold is interstellar space? - Astronomy Stack Exchange
Jun 2, 2016 · The density of the interstellar medium is so very, very low that radiation losses completely dominate over conduction from the medium. The interstellar medium can be very hot precisely …
Solar-system origin of interstellar bodies (like 1I/ʻOumuamua)?
Jul 6, 2025 · I understand that 1I/ʻOumuamua and the other two bodies (2I/Borisov and 3I/ATLAS) are classified as interstellar objects based on their distance from the Sun and their speed. In other words …
How can we know the density of particles in interstellar or ...
Jul 31, 2021 · The density of material in the interstellar medium is inferred from (i) the electromagnetic radiation it emits; (ii) its effect on electromagnetic radiation passing through it. Often these …
Is the angular size of the black hole in the movie "interstellar ...
Oct 15, 2020 · 3 I assume everybody is tired of reading questions derived from the movie Interstellar, I will try to keep this short and simple: In general in movies, in order to have stunning visuals, celestial …
Nomenclature of Interstellar Objects and Stars
May 4, 2021 · One type is diffuse nebulae, which are "clouds" of gas and dust in interstellar space, often many light years across. They include emission nebulae which are heated by stars and so emit light, …
How does interstellar matter density vary? - Astronomy Stack Exchange
The interstellar medium is a multiphase medium, and you can find (some references in this lecture and in this thesis manuscript (this one is in French, but numbers are international)): the hot ionized …
interstellar medium - Why does dust affect UV light more severe than it ...
7 My supervisor told me that the UV photons emitted from AGN are heavily affected by ISM (dust extinction), but not X-rays, as described in Extinction - a powerful discriminator of dust size. Since X …
Interstellar movie: What is the "portal" to the other galaxy?
Jun 2, 2015 · I recently watched Interstellar with some friends and we didn't come to the same conclusion. In my opinion, the portal they use to go to the other galaxy (to visit the three planets) is …