Oort cloud
The Oort Cloud of comets.
Yes, all planets are spherical. They all have a slight bulge at the equator due to rotation, but are almost perfect spheres.
The Sun illuminates the almost spherical Moon. If the angle between an observer on Earth, the Moon and the Sun is less than 90 - but more than 0 degrees and the Moon this month has not been full, it is called waxing (growing) gibbous (observers see more than half illuminated).
A hemisphere is half of a spherical or almost spherical shape for example a planet or the brain. A dome however is an architectural element having a circular plan and looks like a hollow upper half of a sphere, and constructed so as to exert an equal thrust in all directions.
All natural orbits are ellipses. We can force an artificial satellite into a spherical orbit, but it won't STAY there without occasional adjustments. The "primary body" - in this case, the Sun - is at one of the two focuses (foci) of the orbit. If the focus is very close to the "center" of the ellipse, then the eccentricity of the orbit (how much it varies from a perfect circle) is close to zero.
The Oort Cloud of comets.
There are two planets with an almost perfectly spherical shape. They are Mercury and Venus.
The Earth is almost spherical. It's slightly squashed, or oblate.
Russia.
The TROPOSPHERE, which contains all human habitation and almost all weather. It extends up to about 10 km (6 miles, 30,000 feet) above the surface.
A puffer fish, when threatened, will inflate itself until it is spherical to defend itself against predators.
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It's either dog shaped or almost spherical depending on your reference
Yes, the moon is almost perfectly spherical - almost. <><><><><> Its actually spheroidal - like nearly all of the suns, planets and moons in the Solar System, even possibly in the entire Universe, because they rotate, and that causes an spheroidal shape as they cool.
Almost anything can get rounded. To the nearest integer, 78 To the nearest ten, 80
Madrid is a city and the capital of Spain. It sits almost in the center of the country which surrounds it.
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