Gemini Astronauts nasa hammer and feather Gemini Astronauts

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Interesting facts about space.

When Apollo 11 landed on the Moon in 1969, we were presented with our first human contact with the moon. The mission was able to accomplish the task of not only landing on the Moon, but also to return to the Earth with samples from the Moon. These samples along with subsequent presented us with answers regarding the composition of the Moon, which also gave us some basic facts that any theory about how the moon was created must answer/address. We learned:The Moon does not contain an iron core like our Earth does, due to the fact that the Moon's density is only 3.34 grams per cubic centimeter (compared to the Earth's which is 5.52 grams per cubic centimeter).Samples collected from the surface of the Moon reveal that it underwent extreme heat and baking, much more than what the Earth experienced.



and here is another

In nature, moon jellies spend most of their time drifting on currents rather that swimming. In captivity, they will require an aquarium with a well designed turbulence system to keep them from becoming a helpless ball of gelatinous goo at the bottom of your tank.



and finally

Pluto itself is a relatively large denizen of the distant Kuiper Belt, that orbits our Sun in the frigid company of a vast multitude of other bewitching and mysterious icy objects. Like other Kuiper Belt Objects (KBOs), Pluto is thought to be composed primarily of ice and rock. It is an intriguing frozen "oddball", a mere 1/6 the mass of Earth's own Moon and 1/3 its volume. Pluto also has a highly inclined, eccentric orbit that carries it from 30 to 49 Astronomical Units (AU) from our Sun. One AU is equal to the mean Earth-Sun separation of 93,000,000 miles. As a result, Pluto periodically moves towards our Sun at a distance that is closer to our Star than Neptune. Very fortunately for both Neptune and Pluto, an orbital resonance with Neptune prevents the duo from crashing into each other.

Other facts:

Triton also possesses a thin atmosphere composed mainly of nitrogen, and a smaller quantity of methane. This atmosphere probably is the result of Triton's cryovolcanism, which is enhanced by seasonal heating from the Sun. Although little is currently known of Pluto's atmosphere, it is thought to be primarily composed of nitrogen with some carbon monoxide and methane added to the mix--and it is extremely tenuous. Pluto's very thin atmosphere may exist as a gas only when Pluto is nearest to the Sun (perihelion). For most of Pluto's very long year, the atmospheric gases are frozen in the form of ice on its extremely frigid surface. One year on Triton is almost 248 Earth-years long--or 90,471 Earth-days!



However, Earth's Moon presents a special problem because its surface becomes increasingly hotter and hotter over the course of a day. Alas, this is especially true at latitudes where the pyroclastic deposits are located. This means that in addition to the light reflected from the lunar surface, the spectrometer also winds up measuring heat.



In addition to shedding new light on the lunar water-mystery, the new research could also have important implications for future exploration of Earth's Moon. The volcanic beads do not harbor a lot of water--only about.05 percent by weight--but the deposits are large, and the water could potentially be extracted.