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2 dni temu · The Sun orbits the Galactic Center at a distance of 24,000 to 28,000 light-years. From Earth, it is 1 AU (1.496 × 10 8 km) or about 8 light-minutes away. Its diameter is about 1,391,400 km (864,600 mi), 109 times that of Earth. Its mass is about 330,000 times that of Earth, making up about 99.86% of the total mass of the Solar System.
4 dni temu · The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 billion years). It chronologically organises strata, and subsequently time, by observing fundamental changes in stratigraphy that correspond to major geological or paleontological ...
2 dni temu · At the end of this epoch, the spherical volume of space which will become the observable universe is about 300 light-years in radius, baryonic matter density is on the order of 4 grams per m 3 (about 0.3% of sea level air density)—however, most energy at this time is in electromagnetic radiation.
5 dni temu · Sebakwian Group. Late Archean Era. (Show more) Archean Eon, the earlier of the two formal divisions of Precambrian time (about 4.6 billion to 541 million years ago) and the period when life first formed on Earth.
4 dni temu · Open clusters have diameters of only 2 or 3 to about 20 light-years, with the majority being less than 5 light-years across. In structure they look very different from globular clusters, though they can be understood in terms of similar dynamical models.
4 dni temu · The emergence of no-analogue conditions, shown by the vertical dashed line, is estimated as the time when lake temperatures will permanently exceed the natural variability range. b, Global average ...
1 dzień temu · Fluctuations in sea level have caused the length of Earth's day to vary between 0.3 and 1.0 milliseconds per century during the 20th century. But since 2000, the length of day has increased by a ...
