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A graphical view of the Cosmic Calendar, featuring the months of the year, days of December, the final minute, and the final second. The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its currently understood age of 13.8 billion years to a single year in order to help intuit it for pedagogical purposes in science education or popular science.
The official San Diego Zoo YouTube account left a now-pinned comment on the video in 2020, stating that they felt honored being featured in the first-ever YouTube video. [23] As of October 22, 2024, it is the most-liked comment on the platform, with 3.9 million likes.
The planetary hours are an ancient system in which one of the seven classical planets is given rulership over each day and various parts of the day. Developed in Hellenistic astrology , it has possible roots in older Babylonian astrology , and it is the origin of the names of the days of the week as used in English and numerous other languages.
Astronomer Giovanni Domenico Cassini first observed what he called the “Permanent Spot” on Jupiter in 1665. New research suggests that the Great Red Spot formed about 190 years ago, which ...
On 30 October 2024, the music video surpassed 200 million views on YouTube in 11 days and 22 hours, setting the record as the fastest female K-pop solo artist video to achieve the milestone. [123] On 5 December, it broke the record for the fastest K-pop artist to reach 500 million views on the platform. [ 124 ]
Known affectionately to scientists as the "boring billion," there was a seemingly endless period in the world's history when the length of a day stayed put. The time when a day on Earth was just ...
Jupiter is the fifth planet from the Sun and the largest in the Solar System.It is a gas giant with a mass more than 2.5 times that of all the other planets in the Solar System combined and slightly less than one-thousandth the mass of the Sun.
The ionizing radiation level at Europa's surface is equivalent to a daily dose of about 5.4 Sv (540 rem), [59] an amount that would cause severe illness or death in human beings exposed for a single Earth day (24 hours). [60] A Europan day is about 3.5 times as long as an Earth day. [61]