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Bookmark or Share- What is the biggest star we know? - NASAThe largest known star (in terms of mass and brightness) is called the Pistol Star. It is believed to be 100 times as massive as our Sun, and 10,000,000 times as bright! In 1990, a star named the Pistol Star was known to lie at the center of the Pistol Nebula in the Milky Way Galaxy. In 1995, it was suggested that the Pistol Star was so massive ...
- 88 Officially Recognized Constellations - NASALearn about the 88 officially recognized constellations and their significance in astronomy on NASA's webpage.
- StarChild: Glossary - NASAA low density cloud of gas and dust in which a star is born. O OORT CLOUD A huge cloud which is thought to surround our solar system and reach over halfway to the nearest star. Comets originate in the Oort Cloud. ORBIT A specific path followed by a planet, satellite, etc. P PARSEC One parsec equals 3.26 light-years. PAYLOAD BAY
- What causes a "falling star"? - NASAA "falling star" or a "shooting star" has nothing at all to do with a star! These amazing streaks of light you can sometimes see in the night sky are caused by tiny bits of dust and rock called meteoroids falling into the Earth's atmosphere and burning up. The short-lived trail of light the burning meteoroid produces is called a meteor.
- What is a brown dwarf? - NASABrown dwarfs are objects which have a size between that of a giant planet like Jupiter and that of a small star. In fact, most astronomers would classify any object with between 15 times the mass of Jupiter and 75 times the mass of Jupiter to be a brown dwarf. Given that range of masses, the object would not have been able to sustain the fusion ...
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