Why is there so much methane in space?
Often for molecules to form in interstellar space, dust is used as a catalyst. The reason is that in typical interstellar environments, …
What's the mass of the interstellar neighborhood of the Sun?
Mar 2, 2015 · The interstellar medium (ISM) is primarily atomic hydrogen, and has an average density of 1 proton per cubic …
Do heavier elements breakdown during supernova?
Thus although the material injected back into the interstellar medium is enriched with heavier elements, there is still plenty of …
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. …
Space time and aging - Astronomy Stack Exchange
Apr 26, 2015 · In the movie Interstellar, astronauts orbit a supermassive black hole. When they visit a planet in the vicinity of the …
Fusion of elements inside heavy stars - Astronomy Stack Exchange
Jan 4, 2016 · This mechanism will be an important contributor to the carbon, nitrogen and oxygen abundances in the interstellar …
Could an ejected "extra ice-giant" still be lurking in distant solar ...
Jul 20, 2015 · The number of interstellar "vagabond planets" has been estimated to be as many as the number of stars. And …
How is interstellar gas density mapped from GAIA data?
Apr 26, 2018 · The first two maps reflect data obtained from analysis of GAIA's measurement of starlight as explained in this answer, …
elemental abundances - Is the composition of stars in future made of ...
The initial stars were made of hydrogen and helium. These enriched the interstellar medium (ISM) with some chemical elements right …
Why do stars seem not to move relative to each other?
Now, scale that up by many orders of magnitude to interstellar distances and you'll see why the stars don't appear to move relative to …
