Ethereal Plane
The Ethereal Plane is coexistent with the Material Plane and often other planes as well. The Material Plane itself is visible from the Ethereal Plane, but it appears muted and indistinct; colors blur into each other and edges are fuzzy.
While it is possible to see into the Material Plane from the Ethereal Plane, the latter is usually invisible to those on the Material Plane. Normally, creatures on the Ethereal Plane cannot attack creatures on the Material Plane, and vice versa. A traveler on the Ethereal Plane is invisible, insubstanial, and utterly silent to someone on the Material Plane.
The Ethereal Plane has the following traits:
•No Gravity
•Alterable Morphic: The plane contains little to alter, however.
•Mildly Neutral-Aligned
•Normal Magic: Spells function normally on the Ethereal Plane, though they do not cross into the Material Plane. The only exceptions are spells and spell-like abilities that have the force descriptor and abjuration spells that affect ethereal beings; these can cross from the Material Plane to the Ethereal Plane. Spellcasters on the Material Plane must have some way to detect foes on the Ethereal Plane before targeting them with force-based spells. While it's possible to hit ethereal enemies with a force spell cast on the Material Plane, the reverse isn't possible. No magical attacks cross from the Ethereal Plane to the Material Plane, including force attacks.
Astral Plane
The Astral Plane is the space between the Inner and Outer Planes, and coterminous with all of the planes. When a character moves through a portal or projects her spirit to a different plane of existence, she travels through the Astral Plane. Even spells that allow instantaneous movement across a plane briefly touch the Astral Plane. The Astral Plane is a great, endless expanse of clear silvery sky, both above and below. Occasional bits of solid matter can be found here, but most of the Astral Plane is an endless, open domain.
The Astral Plane has the following traits:
•Subjective Directional Gravity
•Timeless: Age, hunger, thirst, afflictions (such as diseases, curses, and poisons), and natural healing don't function in the Astral Plane, though they resume functioning when the traveler leaves the Astral Plane.
•Mildly Neutral-Aligned
•Enhanced Magic: All spells and spell-like abilities used within the Astral Plane may be employed as if they were improved by the Quicken Spell or Quicken Spell-Like Ability feats. Already quickened spells and spell-like abilities are unaffected, as are spells from magic items. Spells so quickened are still prepared and cast at their unmodified level. As with the Quicken Spell feat, only one quickened spell or spell-like ability can be cast per round.
