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Mercury is an average distance of 48 million miles (77 million km) from Earth.
Mercury has the most eccentric orbit of all the planets in the Solar System; its eccentricity is 0.21 with its distance from the Sun ranging from 46,000,000 to 70,000,000 km (29,000,000 to 43,000,000 mi). It takes 87.969 Earth days to complete an orbit.
Size and Distance If Earth were the size of a nickel, Mercury would be about as big as a blueberry. From an average distance of 36 million miles (58 million kilometers), Mercury is 0.4 astronomical units away from the Sun. One astronomical unit (abbreviated as AU), is the distance from the Sun to Earth.
) away from Earth and Mercury is 1.04 AU away. The researchers figured that for any two bodies in the same plane and moving in concentric orbits, the average distance between the two bodies is directly proportional to the radius of the inner orbit.
A prime specimen will easily fetch $50/gram while rare examples of lunar and Martian meteorites may sell for $1,000/gram or more — almost forty times the current price of gold!
If an asteroid breaks into fragments, any fragment larger than 35 meters across would not burn up in the atmosphere and itself could impact Earth.
As stated above, humans have only survived ice ages which means there is no accurate reference to compare with global warming. The true effects of modern day climate change is relatively unknown. Many people believe animals and plants can adapt to modern day climate change because they did so during the Ice Age.
The results of this study, which were based on estimated real global biodiversity, showed that between 628 and 1,078 non-avian dinosaur species were alive at the end of the Cretaceous and underwent sudden extinction after the Cretaceous–Paleogene extinction event.
Dinosaurs continued to live in New Zealand and had about had 10–20 million years to evolve unique species after it separated from Gondwana. In the Cretaceous, New Zealand was much further south (c. Ratites evolved around c. 80 ma and may have been present in Zealandia at this time.
Tuatara are rare, medium-sized reptiles found only in New Zealand. They are the last survivors of an order of reptiles that thrived in the age of the dinosaurs.