interstellar medium - What is the word for space that is in the solar . . . We distinguish space by its contents; the space within the heliosphere is called the interplanetary medium (it contains solar plasma, dust, etc ), while the interstellar medium comprises sparse gaseous molecules from the Local Fluff and (if you go far enough) the rest of the Local Bubble
How cold is interstellar space? - Astronomy Stack Exchange 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 because it is a gas (gases are a bit weird), and because it is extremely tenuous (extremely tenuous gases are beyond weird)
Is the angular size of the black hole in the movie interstellar . . . 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 objects are displayed as if they were extremely close to the observers, having a enormous apparent angular size
Does the radio signal decay when it travels through the intergalactic . . . This NASA report outlines some of the limitations that a realistic implementation of interstellar communication must deal with Even in the case of a quantum noise-limited system, we can still make the best of the limitations dealt to us If the signal-to-noise ratio is above an acceptable threshold then the signal will be received well
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 medium (HIM) with density as low as 10^-3 cc (particles per cubic centimeter); the warm ionized medium (WIM), with density of the order of 0 03 cc; the warm neutral medium (WNM), with density of
Interstellar Dust properties - Astronomy Stack Exchange 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 in size (siz
Why is the interstellar medium so hot? - Astronomy Stack Exchange What that ESA (European Space Agency) page titled Hot gas sloshing in a galactic cauldron that you link to describes are called WHIM (Warm–Hot Intergalactic Medium) They are not interstellar medium, but intergalactic medium gas The difference in density is huge, with interstellar medium density at an average of ρ ∼ 1 ppcm ρ ∼ 1 p p c m $\rho \sim 1\text{ }ppcm$ (one proton per cubic
Life planets orbiting black-holes. Can Do they really exist? Interstellar's "Miller's Planet" is utter rubbish First of all, black holes don't start out as black holes Black holes form at the end of the life cycle of very big star (at least 25 solar masses but more frequently over 35 or 40 SMs) when it goes supernova or hypernova Any planets in orbit around that star are going to be obliterated before the black hole becomes a black hole We need to
Why dont we see the galaxy center? - Astronomy Stack Exchange The main reason we don't see the bright center of our galaxy, which is composed of millions of stars, is dust Visible light is absorbed and scattered by interstellar dust, but that doesn't mean we can't see it on other waves of the spectrum, for example, infrared light doesn't suffer as much because of the dust Notice on this image how bright the galaxy center looks on the infrared and the