http://www.universetoday.com/87146/spectacular-view-from-lro-of-tycho-craters-central-uplifts/#more-87146 wrote:
Spectacular View from LRO of Tycho Crater’s Central Uplifts
by Nancy Atkinson on June 30, 2011 <<Here’s the Moon like you’ve never seen it before: a dramatic sunrise view of Tycho Crater on the Moon, highlighting the peaks and crags of the crater’s central uplifts. On June 10, 2011 the Lunar Reconnaissance Orbiter slewed 65° to the west, allowing the Narrow Angle Camera to capture a “sideways” look at Tycho crater, resulting in a spectacular image. The central peak complex is about 15 km wide southeast to northwest (left to right in this view). Below are more images and a video which spans and zooms in to the entire image.
Tycho Crater is a very popular target with amateur astronomers since it is easily seen from Earth. The crater measures about 82 km in diameter, and the summit of the central peak is 2 km above the crater floor, and the crater floor is about 4700 m below the rim. Central uplifts form in larger impact craters in response to the impact event.
LROC principal investigator Mark Robinson wrote on the LRO website, “Tycho’s features are so steep and sharp because the crater is young by lunar standards, only about 110 million years old….Were these distinctive outcrops formed as a result of crushing and deformation of the target rock as the peak grew? Or do they represent preexisting rock layers that were brought intact to the surface? Imagine future geologists carefully making their way across these steep slopes, sampling a diversity of rocks brought up from depth.”>>
[youtube]http://www.youtube.com/watch?v=361YcacQ ... r_embedded[/youtube]
http://en.wikipedia.org/wiki/2001:_A_Space_Odyssey_%28film%29 wrote:
<<Dr. Heywood R. Floyd (William Sylvester) heads a meeting of base personnel, apologizing for the epidemic cover story but stressing secrecy. His mission is to investigate a recently found artifact—"Tycho Magnetic Anomaly One" (TMA-1)—"deliberately buried" four million years ago. Floyd and others ride in a Moonbus to the artifact, a black monolith identical to the one encountered by the apes. The visitors examine the monolith, and pose for a photo in front of it. While doing so, they hear a very loud radio signal coming from the monolith.
The first two appearances of the monolith, one on Earth and one on the Moon, conclude with the sun at its zenith over the top of the monolith. While this could happen in an African veldt anywhere between the Tropic of Cancer and the Tropic of Capricorn, it could not happen anywhere near the crater Tycho (where the monolith is found) as it is 45 degrees south of the lunar equator. Also implausible is the sun reaching its zenith so soon after a lunar sunrise, and the appearance of a crescent Earth near the sun is in complete discontinuity with all previous appearances of Earth, whose position from any spot on the Moon never varies.>>
I suspect that Hal knew but kept quiet about TMA-2. 