Geologists believed prior to the mission that both of these formations were volcanic in origin ; however, samples returned from the lunar surface have since proven this hypothesis is incorrect.

Several members of the scientific community remarked that the central lunar highlands resembled regions on Earth that were created by volcanic processes and hypothesized the same might be true on the Moon.

Tektites were once thought by many to be obsidian produced by lunar volcanic eruptions, though few scientists now adhere to this hypothesis.

Like all lunar maria, Oceanus Procellarum was formed by ancient basaltic flood volcanic eruptions that covered the region in a thick, nearly flat layer of solidified magma.

The Sea of Nectar ( Mare Nectaris ) is a small lunar mare or sea ( a volcanic lava plain noticeably darker than the rest of the Moon's surface ) located between the Sea of Tranquility ( Mare Tranquillatis ) and the Sea of Fecundity ( Mare Fecunditatis ).

The majority of TLPs appear to be associated with floor-fractured craters, the edges of lunar maria, or in other locations linked by geologists with volcanic activity.

In contrast to a terrestrial impact source for tektites, it was argued that tektites consist of material that was ejected from the Moon by major hydrogen-driven lunar volcanic eruptions and then drifted through space to later fall to Earth as tektites.

Starting with the publication of research concerning lunar samples returned from the Moon, the consensus of Earth and planetary scientists shifted in favor of theories advocating a terrestrial impact versus lunar volcanic origin.

It is not volcanic in origin, but rather is made of anorthosite like the lunar highlands.

These dark-halo craters are cinder cone-shaped and are believed by some to be volcanic in origin, although others think they were caused by impacts that excavated darker mare material from underneath the lighter lunar regolith.

These putative outgassing events, in which radon, nitrogen, and carbon dioxide are vented, are hypothesized to be the source of the tenuous lunar atmosphere, and may be the result of the low-level volcanic / tectonic activity on the Moon.

The lunar maria ( singular: mare ) are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions.

The surface to the west and north of this crater contains a large number of lunar domes spread across an area over a hundred kilometers in diameter that may be of volcanic origin dubbed the Marius Hills.

These domes, if volcanic, may have been formed by magma that is fairly more viscous than the volcanic material that formed the basaltic lunar maria.

At one time this crater was considered to have formed due to volcanic activity, in contrast to most lunar craters which are considered to have been created through impacts.

The major products of volcanic processes on the Moon are evident to the Earth-bound observer in the form of the lunar maria.

Observed effects of the eruption include the following anecdotal accounts: dry fog in France ; lunar eclipses in England ; severe winter in Europe ; a " harsh " spring in Northern Iceland ; famine in England, Western Germany, France, and Northern Italy ; and pestilence in London, parts of France, Austria, Iraq, Syria, and South-East Turkey.

In 1963, NASA astronomer Winifred Cameron proposed that sinuous rilles on the Moon may have been formed by the lunar equivalent of terrestrial pyroclastic flows.

But an even bigger facility would be needed for the mammoth rocket required for the manned lunar mission, so land acquisition was started in July 1961 for a Launch Operations Center ( LOC ) immediately north of Canaveral at Merritt Island.

However, after the cancellations of Apollo 18 and Apollo 19 were finalized in September 1970 it meant that this crew would not rotate to a lunar mission as planned.

In preparation for their mission, the Apollo 16 astronauts participated in an extensive training program that included, among other things, several field geology trips to introduce the astronauts to concepts and techniques they would eventually use on the lunar surface.

During the training exercises the astronauts did not wear spacesuits, but carried radio equipment to converse with each other and a scientist-astronaut, practicing procedures they would use on the lunar surface.

After waking up on flight day four, the crew began preparations for the maneuver that would brake the spacecraft into orbit around the Moon, or lunar orbit insertion.

Apollo 16 would spend one less day in lunar orbit after surface exploration had been completed to afford the crew contingency time to compensate for any further problems and to conserve expendables.

Flight day seven was to be Young's and Duke's third and final day on the lunar surface, for they would return to orbit to rejoin Ken Mattingly in the Command / Service Module following the day's moonwalk.

After transfers were completed, the crew would sleep before jettisoning the empty lunar module ascent stage the next day, when it was to be crashed intentionally into the lunar surface.

NASA planners invented the term extra-vehicular activity in the early 1960s for the Apollo program to land men on the Moon, because the astronauts would leave the spacecraft to collect lunar material samples and deploy scientific experiments.

Mare Tranquillitatis or the " Sea of Tranquility " would become the site chosen for the Apollo 11 lunar landing.

Since the Celtic year was based on both lunar and solar cycles, it is most likely that the holiday would be celebrated on the full moon nearest the midpoint between the winter solstice and vernal equinox, or when the primroses, dandelions, or other spring flowers rise up through the snow, or when the sun aligned with the passage tombs in the pre-Celtic megaliths.

In early planning for the Apollo Program, it had been assumed that two Saturn V launch vehicles would be used for each lunar mission: one for sending the crew aboard a Lunar Surface Module ( LSM ) to lunar orbit, landing, and returning, and a second for sending an LSM-Truck ( LSM-T ) with all of the equipment, supplies, and transport vehicle for use by the crew while on the surface.

To keep a 12-month lunar year in pace with the solar year, an intercalary 13th month would have to be added on seven occasions during the nineteen-year period ( 235 = 19 × 12 + 7 ).

* During early Apollo program missions to the Moon, the spacecraft was put on a free return trajectory — if the engines had failed at lunar orbit insertion, the craft would have safely coasted back to Earth.

The rover would run during the lunar day, stopping occasionally to recharge its batteries via the solar panels.

The rover would run during the lunar day, stopping occasionally to recharge its batteries with the solar panels.

In the new law, the age of 18 ( solar year ) would be for both genders considered and juvenile offenders will be sentenced on a separate law than of adults .” Based on the Islamic law which now seems to have been revised, girls at the age of 9 and boys at 15 of lunar year ( 11 days shorter than a solar year ) were fully responsible for their crimes.

* The presence of volatiles such as water trapped in lunar basalts is more difficult to explain if the Moon was caused by an impact that would entail a catastrophic heating event.

The original plan was for the spacecraft to travel for 2. 6 days to the Moon at which time a TX-8-6 solid propellant motor would fire to put it into a lunar orbit which was to nominally last for about two weeks.

) ( and at least a year earlier than Almaz ), the Salyut programme was incepted on February 15, 1970 – under the condition that the manned lunar program would not suffer.

However, the engineers at OKB-1 immediately switched from the L3 lunar lander effort, which was perceived as an dead-end, to start work on DOS – despite fears that it would kill the Soviet manned Moon shot.

Her festival fell on the Ides of March ( March 15 ), which would have marked the first full moon in the year in the old lunar Roman calendar when March was reckoned as the first month of the year, and was held at the grove of the goddess at the first milestone on the Via Flaminia.

The Incas would fear lunar eclipses as they believed that during the eclipse, an animal ( possibly a mountain lion, serpent or puma ) was attacking Mama Quilla.