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So now when I look at these amazing photos, I canР Р†Р вЂљРІвЂћСћt see those backpacks in these images, future images of the sites may show them, but I do see places where my dadР Р†Р вЂљРІвЂћСћs name will be found forever. So when the packs were left on the moon, the signatures also remained as a permanent monument to their achievements. Before the packs were finished and shipped off, the engineers would etch their signatures on parts of the PLSS frame.

At the end of each lunar landing mission, in order to reduce the mass launched into lunar orbit, the astronauts would toss the PLSSР Р†Р вЂљРІвЂћСћ onto the lunar surface they were left behind and quickly forgotten.Р вЂ™Р’В However, those who built the PLSS did not forget them.

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In the mid 1960s my father worked on the Apollo program, building parts for the astronautsР Р†Р вЂљРІвЂћСћ backpacks, known as the Portable Life Support Systems (PLSS). These special areas on the moon now have a new life, with the help of a reminder that 40 years ago humans spent days exploring the surface of our neighbor in space.Р вЂќР вЂЎor me, these photos have an additional dimension as they remind me of why IР Р†Р вЂљРІвЂћСћve always been interested in the moon. Instead, they are dynamic landscapes that can be seen in a new light through LRO. The Apollo landing sites are no longer simply historic sites revealed through 40 year-old images taken by the Apollo astronauts. View other images of the moon in our blogР Р†Р вЂљРІвЂћСћs Flickr gallery. Module visible resting on the lunar surface.Р вЂ™Р’В (NASA/GSFC/ASU) These images from the Lunar Reconnaissance Orbiter (LRO), released July 17, showР вЂќР вЂЎive of the six Apollo landing sites with arrows pointing out the lunar descent With the amazing images of the Apollo landing sites taken through NASAР Р†Р вЂљРІвЂћСћs Lunar Reconnaissance Orbiter (LRO), the Apollo landing sites are once again significant for todayР Р†Р вЂљРІвЂћСћs generation. However after the final Apollo mission left the moon, many forgot these significant lunar landmarks. With live televised coverage from the lunar surface and glossy photo spreads in magazines, places like Tranquility Base, the Descartes Highlands, and Fra Mauro became familiar during the Apollo program. I was not alive when humans last walked on the moon the Apollo missions were part of my parentsР Р†Р вЂљРІвЂћСћ generation.

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This exciting mission promotes participatory exploration from the professional and amateur astronomy community, students and the general public.Р вЂќР’Вuring impact, at least twenty-five Earth-based observatories will be aimed at the Cabeus crater to witness the moment the lunar dust rises and is suspended in the sunlight to determine if it contains water vapor.Р вЂќР вЂћs a 30 year-old research assistant at NASAР Р†Р вЂљРІвЂћСћs Goddard Space Flight Center, I have a unique perspective of the Apollo missions. For example, they will observe the impacts, gather images of them, measure the quantity of water and identify its form and study the lunar soil. Now that LCROSS is two days away from impact, they still have a lot of work ahead of them. Teams of scientists, engineers and astronomers across NASA, industry and academia are working tirelessly to advance space exploration and knowledge of our solar system with this mission. Scientists believe it has been void of sunlight for billions of years and represents an optimal location for determining if water ice exists on the moon.

The crater is more than two miles deep and may be one of the coldest places in the solar system. Little is known about the moonР Р†Р вЂљРІвЂћСћs permanently shadowed regions and we may find some unexpected results from this unique mission. LCROSS is unique compared to the natural barrage of material impacting the moon because itР Р†Р вЂљРІвЂћСћs designed to know exactly where and when it will impactР вЂ™Р’В - the Cabeus crater near the moonР Р†Р вЂљРІвЂћСћs south pole.Р вЂќР’В¬raters of interest around the lunar south pole. MoonР Р†Р вЂљРІвЂћСћs Copernicus Crater - Lunar Orbiter Photo 1966 (Credit: NASA) What most people donР Р†Р вЂљРІвЂћСћt know, is the moon receives LCROSS-sized impacts about once a week -Р вЂ™Р’В thatР Р†Р вЂљРІвЂћСћs more than 50 impacts a year! It also is interesting to note that it experiences thousands of Р Р†Р вЂљРЎС™moonquakesР Р†Р вЂљРЎСљ each year and releases energy by heat flow, electromagnetic conduction and tides from Earth and the Sun.

The moon looks very unchanging and calm in the night sky and is rarely thought of as an active planetary body. It at the cornerstone of understanding the birth and evolution of Earth and other planets, therefore we need to explore it.

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We have yet to uncover the full wealth of scientific information the moon holds.