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RSSLunar space elevator
A lunar space elevator (also
called a moonstalk) is a
proposed cable running from
the surface of the Moon into
space. It is similar in
concept to the better known
Earth space elevator idea (a
cable suspended above Earth,
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Eclipse
An eclipse is an
astronomical event that
occurs when one celestial
object moves into the shadow
of another. The term is most
often used to describe
either a solar eclipse, when
the Moon's shadow crosses
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Buzz Aldrin
Colonel Buzz Aldrin, Sc.D
(born January 20, 1930 as
Edwin Eugene Aldrin, Jr.) is
an American pilot and
astronaut who became the
second human to set foot on
the Moon (after Neil
Armstrong) during the Apollo
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Van Allen radiation belt
The Van Allen radiation belt
is a torus of energetic
charged particles (i.e. a
plasma) around Earth,
trapped by Earth's magnetic
field. When the belts
"overload", particles strike
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Browse Reference Articles
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Space suit
A space suit is a complex system of garments and equipment and environmental systems designed to keep a person alive and comfortable in the harsh environment of outer ... > more -
Impact crater
An impact crater is a circular depression on a surface, usually referring to a planet, moon, asteroid, or other celestial body, caused by a collision of a smaller body (meteor) with the ... > more -
Precession
Precession refers to a change in the direction of the axis of a rotating object. In certain contexts, "precession" may refer to the precession that the Earth experiences, the effects of this type of ... > more -
Neptune's natural satellites
Neptune has 13 known moons. The largest by far is Triton, discovered by William Lassell just 17 days after the discovery of Neptune itself. It took a hundred years to discover the second, Nereid. ... > more -
Outer space
Outer space, also simply called space, refers to the relatively empty regions of the universe outside the atmospheres of celestial bodies. Outer space is used to distinguish it from airspace (and ... > more -
Solar eclipse
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring Earth's view of the Sun. This configuration can only occur during a New Moon, when the ... > more
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