The proliferation of social media accounts sharing astronomical content has led to a significant amount of misleading and inaccurate information, primarily driven by engagement rather than accuracy. Facebook's algorithm favors sensationalist, low-effort posts, often created with minimal knowledge, diminishing the reliability of astronomical information on the platform.
The standard unit of time in the SI system is the second, historically defined as 1/86400th of a mean solar day. The modern definitions since 1967 is based upon a caesium atom transition. The Earth's rotation is gradually slowing down meaning that in thousands of years' time the second may need to be redefined to bring it back in line with the mean solar day.
Explores perfect numbers, defined as positive integers equal to the sum of their proper divisors. Examples include 6, 28, and 496, with only 52 known today. It discusses mathematical properties, unsolved questions about odd perfect numbers, historical significance, and the connection to Mersenne primes, highlighting their allure across centuries.
The author shares a curated list of five recommended science books, emphasizing that they are well-reviewed and written by experts in their fields. The selection includes titles from prominent scientists including Neil Degrasse Tyson and David Deutsch, targeting a general audience interested in science.
Updated March 2026 The ashen light is a faint glow, which many people claim to have seen on the night side of Venus. The Italian astronomer Giovanni Riccioli (1598 -1671) first reported it back in 1643, 33 years after Galileo had made the first observations of Venus with a telescope and discovered the planet had… Continue reading The Mystery of the Ashen Light of Venus
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