Giant Planets

Some articles on planets, planet, giant planets, giant:

Comet - Orbital Characteristics - Short Period
... They usually orbit more-or-less in the ecliptic plane in the same direction as the planets ... typically take them out to the region of the outer planets (Jupiter and beyond) at aphelion for example, the aphelion of Halley's Comet is a little beyond the orbit of Neptune ... Comets whose aphelia are near a major planet's orbit are called its "family" ...
Nebular Hypothesis - Formation of Planets - Giant Planets
... The formation of giant planets is an outstanding problem in the planetary sciences ... The first one is the disk instability model, where giant planets form in the massive protoplanetary disks as a result of its gravitational fragmentation (see above) ... is thought to be the most promising one, because it can explain the formation of the giant planets in relatively low mass disks (less than 0.1 solar masses) ...
Super-Earths - Definition
... of the mass of Uranus, which is the Solar System gas giant with the least mass), the lower bound varies from 1 or 1.9 to 5, with various other definitions appearing in the popular media ... Some authors further suggest that the term be limited to planets without a significant atmosphere, or planets that have not just atmospheres but also solid surfaces or oceans with a sharp boundary ... Planets above 10 Earth masses are termed giant planets ...

Famous quotes containing the words planets and/or giant:

    Marriage is the clue to human life, but there is no marriage apart from the wheeling sun and the nodding earth, from the straying of the planets and the magnificence of the fixed stars.
    —D.H. (David Herbert)

    The point of the dragonfly’s terrible lip, the giant water bug, birdsong, or the beautiful dazzle and flash of sunlighted minnows, is not that it all fits together like clockwork--for it doesn’t ... but that it all flows so freely wild, like the creek, that it all surges in such a free, finged tangle. Freedom is the world’s water and weather, the world’s nourishment freely given, its soil and sap: and the creator loves pizzazz.
    Annie Dillard (b. 1945)