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Results tagged with astrophysics
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user 4578
The application of physical theory to celestial systems such as stars, planets, galaxies, supernovae, and black holes. Astrophysics proper is concerned with explaining phenomena more so than making observations, the latter falling under the purview of astronomy.
4
votes
Lack of exoplanet missions in the decadal survey
We don't really know what method is better yet because there are too many factors we don't know. Sensitivity and throughput are the most important aspects of such a mission but the details of both are …
- 1,855
7
votes
How are new nebulae being created?
There is a well known process for taking mass away from nebulae (star formation) but there are many processes for putting mass back into nebulae as well. Stellar winds (which are very strong for extre …
- 1,855
13
votes
Accepted
Where do the bipolar jets of black holes come from?
Black holes are small relative to their mass, matter that falls into a black hole will accelerate to very high speeds and then get crammed into a very tight volume. If even a relatively modest amount …
- 1,855
3
votes
Why does each celestial object spin on its own axis?
All celestial objects are formed from larger, more diffuse collections of matter (such as a nebula which collapses to form a star). These larger objects typically have some very small net angular mome …
- 1,855