Is it possible for a meteor the size of the moon to enter our solar ...
Jun 14, 2025 · And to answer the question about an interstellar "meteor the size of the Moon", that is even more impossibler than an interstellar "meteoroid the size of the Moon". A meteor is …
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 …
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 …
Is the angular size of the black hole in the movie "interstellar ...
Oct 15, 2020 · 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 …
What are the differences between Intergalactic Medium, …
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 …
Why does rotation prevent the further contraction of the cloud?
Apr 16, 2021 · Which bring the question of why does rotation prevent the further contraction of the cloud? Doesn't the rotation create a centripetal force that pointed inside, thus make the …
terminology - Is "intrastellar" commonly used by astronomers to …
Quick checks of a few of them show a mixture of simple typos (i.e., "intrastellar" used when "interstellar" is clearly meant), awkward/failed attempts at synonyms for "intracluster stellar …
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 …
solar system - In theory, could an object like 'Oumuamua have …
Aug 24, 2024 · Maybe, but the probability is very low. There are excellent answers at the recent related question, Can it be predicted if an Interstellar Object will get bound to the solar system …
What were the odds that ʻOumuamua passed so close to the Sun?
Nov 15, 2018 · Has anyone researched what the odds were that the first ever spotted interstellar object passed so close to the Sun? Being the interstellar space almost totally empty, I would …