Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry... 98 KB (10,181 words) - 15:46, 21 March 2024 |
Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical... 81 KB (10,061 words) - 14:55, 4 March 2024 |
In astronomy, an epoch or reference epoch is a moment in time used as a reference point for some time-varying astronomical quantity. It is useful for... 24 KB (3,437 words) - 01:12, 5 December 2023 |
Sidewalk astronomy or street corner astronomy refers to the activity of setting up a telescope in an urban place on a for-profit or non-profit basis as... 8 KB (685 words) - 04:41, 18 October 2023 |
Abell clusters. The new redshift surveys revolutionized the field of astronomy by adding depth to the two-dimensional maps of cosmological structure... 37 KB (4,529 words) - 16:05, 4 January 2024 |
Sun (redirect from Sun (astronomy)) Unsolved problem in astronomy: Why is the Sun's corona so much hotter than the Sun's surface? (more unsolved problems in astronomy) The temperature of... 165 KB (18,869 words) - 03:40, 28 March 2024 |