[Answer] Some objects in space are created from clouds of gas and dust.What will happen if the cloud does not have enough mass?A core will form.A star will not form.A protostar will form.A nebula will not form.

Answer: b
Some objects in space are created from clouds of gas and dust.What will happen if the cloud does not have enough mass?A core will form.A star will not form.A protostar will form.A nebula will not form.

A galaxy is a gravitationally bound system of stars stellar remnants interstellar gas dust and dark matter. The word galaxy is derived from the Greek galaxias (γαλαξίας) literally “milky” a reference to the Milky Way.Galaxies range in size from dwarfs with just a few hundred million (10 8) stars to giants with one hundred trillion (10 14) stars each orbiting its galaxy’s center …

A nebula (Latin for ‘ cloud or ‘fog’; pl. nebulae nebulæ or nebulas) is an interstellar cloud of dust hydrogen helium and other ionized gases.Originally the term was used to describe any diffused astronomical object including galaxies beyond the Milky Way.The Andromeda Galaxy for instance was once referred to as the Andromeda Nebula (and spiral galaxies in general as “spiral nebulae …

A brown dwarf is a type of substellar object that has a mass between the most massive gas giant planets and the least massive stars approximately 13 to 80 times that of Jupiter (M J).. Unlike main sequence stars brown dwarfs do not acquire enough mass to trigger sustained nuclear fusion of ordinary hydrogen (1 H) into helium in their cores.For this reason brown dwarfs are sometimes referred …

An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1 100 open clusters have been discovered within the Milky Way Galaxy and many more are thought to exist. They are loosely…

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