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Dec
22
reviewed Approve How to get the longitude of the perihelion to find the Heliocentric Equatorial coordinates of a planet
Dec
17
reviewed Reject Source of high energy cosmic particles
Dec
17
comment What is the next planned mission that can discover life on another planet?
@Haaakon The community seems to agree that the way it is currently phrased is more on topic on Space Exploration. If you want answers here, I suggest to revise to shift focus from exploratory missions (e.g. orbiters, landers) to long-distance observations (e.g. spectral analysis of atmospheres). This question is too old to migrate to Space Exploration.
Dec
17
reviewed Close What is the next planned mission that can discover life on another planet?
Dec
17
reviewed Close Brown Dwarf transcending past the sun with the naked eye
Dec
16
comment Are there real uses of abstract algebra in astrophysics?
I'm not an expert on the topic, but I do know that abstract algebra is applied to spectral analysis.
Dec
16
comment Are there real uses of abstract algebra in astrophysics?
This question is definitely on topic, and I would consider it a great question on this site. You may get some comments saying you'll get better answers at Physics, but whether or not that is the case that shouldn't prevent you from asking here. In the long run, it will be to the benefit of this site if more people ask and answer questions like this here.
Dec
15
reviewed Approve Do all planets rotate in the same direction in relation to each other?
Dec
15
comment Do all planets rotate in the same direction in relation to each other?
Potential duplicate: Why do (most of) the planets rotate counterclockwise, i.e. the same way the Sun does?
Dec
15
reviewed Approve vacuum tag wiki excerpt
Dec
14
reviewed Close What all application can be possible using the SiPM (silicon photomultiplier) and radiation detection in space?
Dec
10
reviewed Approve Does gravity bend light, and how much time does it take for light to cross gravity of a Black Hole?
Dec
9
comment Is there any real evidence to prove or disprove the existence of alien civilizations?
@HDE226868 I don't think the homework assignment argument is valid in this case. The OP is not doing a short answer or mathematical assignment, but a paper. Stack Exchange may be a valid source for the paper if cited properly. If we want to avoid giving him enough to copy/paste for his paper we can give him some talking points. SETI is on topic here.
Dec
8
comment Oldest in the universe
@RobJeffries I'm sorry that was my bad--I understood the question as asking if there was a region of space that was oldest. I see now that even though that was the OPs reasoning, the heart of the question is how we find the oldest galaxies--which is answerable.
Dec
8
reviewed Approve If oxygen was abundant in Neptune, would there be combustion?
Dec
8
reviewed Approve In a binary star system, what relation determines the eccentricity of the three orbits (for $m_1$, $m_2$, and the reduced mass)?
Dec
7
comment Formation of our Universe
You should also note that brane cosmology is a collection of theories without any evidence thus far.
Dec
7
comment Formation of our Universe
If I understand you correctly, you seem to be talking about a simplification of brane cosmology. Given the imprecision of the simplification you are dealing with, it may be difficult to answer such a "how" question, but I'm no cosmologist.
Dec
7
reviewed Approve Two black holes photo interpretation
Dec
7
comment What if Earth and Moon revolved around each other like Pluto and Charon?
This answer neglects the fact that the Pluto-Charon barycenter is outside of Pluto, while the Earth-Moon barycenter is inside Earth.