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Topic: Mercury 10


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 PSR Discoveries: Hot Idea: Mercury Unveiled
Mercury is the smallest of the inner, rocky planets (Mars, Earth, and Venus) and the closest to the Sun.
This hypothesis also predicts that Mercury should have higher concentrations of elements that have very high boiling points (called refractory elements), such as calcium and aluminum, and not much of the elements that boil at low temperatures (called volatile elements), such as sodium and potassium.
This indicates that the surface in this region of Mercury is underlain by a chemically distinctive layer at depth.
www.psrd.hawaii.edu /Jan97/MercuryUnveiled.html   (2149 words)

  
 MESSENGER: MErcury Surface, Space ENvironment, GEochemistry, and Ranging
Among these, Mercury is an extreme: the smallest, the densest (after correcting for self-compression), the one with the oldest surface, the one with the largest daily variations in surface temperature - and the least explored.
Mercury's uncompressed density (what its density would be without compaction of its interior by the planet's own gravity) is 5.3 grams per cubic centimeter, by far the highest of all the terrestrial planets.
Mercury's axis of rotation is oriented nearly perpendicular to the planet's orbit, so that in the polar regions sunlight strikes the surface at a constant grazing angle.
messenger.jhuapl.edu /why_mercury   (1829 words)

  
 Mercury
Mercury was named by the Romans after the fleet-footed messenger of the gods because it seemed to move more quickly than any other planet.
Although Mercury is not tidally locked to the Sun, its rotational period is tidally coupled to its orbital period.
This image is a portion of the southwest quadrant of Mercury taken March 29, 1974, by the Mariner 10 spacecraft.
www.solarviews.com /eng/mercury.htm   (2295 words)

  
 Mariner 10   (Site not responding. Last check: 2007-10-20)
Mariner 10 is still orbiting the sun, even though its electronic systems have probably been destroyed by solar radiation.
A nighttime lift-off of the Atlas Centaur launch vehicle propelled Mariner 10 on its historic mission to Venus and Mercury.
The Mariner 10 mission required more course corrections than any previous mission and was the first spacecraft to use the gravitational pull of one planet to help it reach another planet.
pds.jpl.nasa.gov /planets/welcome/m10.htm   (260 words)

  
 Mercury
Mercury is the only body in the solar system known to have an orbital/rotational resonance with a ratio other than 1:1 (though many have no resonances at all).
Mercury's interior is dominated by a large iron core whose radius is 1800 to 1900 km.
Mercury is often visible with binoculars or even the unaided eye, but it is always very near the Sun and difficult to see in the twilight sky.
www.seds.org /billa/tnp/mercury.html   (1269 words)

  
 NASA's Solar System Exploration: Planets: Mercury: Overview   (Site not responding. Last check: 2007-10-20)
The small and rocky planet Mercury is the closest planet to the Sun; it speeds around the Sun in a wildly elliptical (non-circular) orbit that takes it as close as 47 million km and as far as 70 million km from the Sun.
Mercury completes a trip around the Sun every 88 days, speeding through space at nearly 50 km per second, faster than any other planet.
Because Mercury is so close to the Sun, it is hard to see from Earth except during twilight.
solarsystem.nasa.gov /planets/profile.cfm?Object=Mercury   (182 words)

  
 Mariner 10
Mariner 10 was the seventh successful launch in the Mariner spacecraft series, and the first to use the gravitational pull of one planet (Venus) to reach another (Mercury).
On November 3, 1973, Mariner 10 was placed in a parking orbit after launch for approximately 25 minutes, then placed in orbit around the Sun en route to Venus.
The Mariner 10 spacecraft weighed 503 kilograms (1,108 pounds), including 29 kilograms (64 pounds) of fuel and 30 kilograms (66 pounds) associated with the adapter between the spacecraft and the Centaur upper stage launch vehicle.
www.solarviews.com /eng/marin10.htm   (730 words)

  
 Encounters   (Site not responding. Last check: 2007-10-20)
Earlier analysis of Mariner 10 orange and UV images led to the startling inference that Mercury's regolith, and thus crust, may actually be deficient in Fe2+ and Ti4+ relative to the Moon [c.f.
Mercury Encounter II After passing Mercury the first time and making a trip around the Sun, Mariner 10 again flew by Mercury on September 21 at 1:59 PM PDT.
Mariner 10 was looking obliquely across Mercury's southern hemisphere when it acquired this dramatic shot near the beginning of its southern hemisphere pass (Frame 166618 original image acquired at ~670 m/pixel).
cps.earth.northwestern.edu /M10/TXT/encounters.html   (1489 words)

  
 BBC NEWS | Science/Nature | Pact to curb mercury is rejected
Mercury is a naturally occurring metal released into the environment from rocks and soils, and in volcanic eruptions.
Mercury bio-accumulates - that is, it builds up in the tissues of animals.
Predatory fish are exposed to mercury themselves, and they eat other marine creatures which may also contain the metal; high levels can accumulate in their bodies, which is why pregnant women are advised to regulate their consumption of such fish, protecting their unborn children from exposure.
news.bbc.co.uk /go/newsFeedXML/moreover/-/1/hi/sci/tech/4297401.stm   (1004 words)

  
 APOD: January 2, 1999 - Mercury: A Cratered Inferno   (Site not responding. Last check: 2007-10-20)
Mercury's diameter is about 4800 km, while the Moon's is slightly less at about 3500 km (compared with about 12,700 km for the Earth).
Mercury is the closest planet to the Sun, orbiting at about 1/3 the radius of the Earth's orbit.
As Mercury slowly rotates, its surface temperature varies from an unbearably cold -180 degrees Celsius to an unbearably hot 400 degrees Celsius.
antwrp.gsfc.nasa.gov /apod/ap990102.html   (163 words)

  
 A100 at IUN, Fall 1996: Lecture 10.1: Mercury
Mercury was too small for Galileo to notice that it too exhibits phases.
Finally when Mariner 10 arrived at Mercury, astronomers were able to calculate the mass of Mercury more accurately than before by observing the effect of Mercury on the Mariner 10 spacecraft.
We can calculate the size of Mercury because we can measure how big its disk appears in the sky and we know how far away it must be (since we know the size of the Earth's orbit and the size of Mercury's orbit).
astro.uchicago.edu /home/web/lucia/a100/lectures/mercury.html   (1778 words)

  
 Mercury
Models of the Mercury spacecraft were tested at speeds of Mach 8, 16, and 20 to investigate stability, heat transfer, and pressure distribution of Mercury components.
In considering the possible meteoroid damage to the Mercury spacecraft in orbital flight, it was concluded by the Space Task Group that damage likelihood was small even during periods of meteor showers.
Mercury spacecraft No. 5 was delivered to the Marshall Space Flight Center for booster compatibility checks, and was shipped to Cape Canaveral on October 11, 1960, for the Mercury-Redstone 2 (MR-2) ballistic-primate (Ham) mission.
www.astronautix.com /craft/mercury.htm   (15477 words)

  
 mariner
The exploration of Mercury was the primary objective of the mission and the basis for the selection of the Mariner 10 experiment complement.
Mariner 10 passed through the region in which Earth is occulted by Mercury (as viewed from the spacecraft) to permit a dual-frequency (X- and S-band) radio occultation probe in search of an ionosphere and to measure the radius of the planet.
The occultation of the spacecraft by Mercury on the first encounter afforded an opportunity to probe the atmosphere and to measure the radius of the planet.
history.nasa.gov /SP-423/mariner.htm   (1584 words)

  
 CBS News | EPA's Mercury Lingo Altered | April 7, 2004 11:41:43
The proposed rules on mercury mirror the wishes of the energy industry, and according to The Times, some sections of the rules are nearly identical to what was proposed by lobbying firms with ties to current EPA officials.
Attorneys general from 10 states and 45 senators want the rules thrown out, and the EPA administrator, Michael Leavitt, is reviewing them.
In 2001, EPA estimated that mercury could be cut by as much as 90 percent, to 5.5 tons, by 2008 if the best available technology were used as the Clinton EPA had hoped, according to EPA documents obtained by advocacy group National Environmental Trust.
www.cbsnews.com /stories/2003/11/06/tech/main582309.shtml   (901 words)

  
 Mercury 10 -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-20)
He said that priority should now be given to the (A program of space flights undertaken by US in 1965 and 1966) Gemini program.
The Mercury-Atlas 10 (Freedom 7-II) spacecraft was placed in storage at (A sandy promontory (formerly Cape Kennedy) extending into the Atlantic Ocean from a barrier island off the eastern coast of Florida; the site of a NASA center for spaceflight) Cape Canaveral and never flew a mission.
The Mercury Spacecraft used a polyolefin insulated conductor as its basic
www.absoluteastronomy.com /encyclopedia/m/me/mercury_10.htm   (800 words)

  
 The Mercury Project: Mercury front-end for GCC
The Mercury compiler can now generate assembler directly, rather than compiling to assembler via C. This is implemented by linking the Mercury compiler front-end with the GNU Compiler Collection back-end.
The version of the Mercury native code compiler that was included in Mercury 0.10.1 and 0.10.2-beta-* should be considered a beta release.
For Mercury 0.10, 0.10.1, or 0.10.2-beta-*, you'll need the 20010129 shapshot of gcc, which you can get from the GCC cvs repository (use the option `-rgcc_ss_20010129' when checking it out), or from the Mercury ftp site.
www.cs.mu.oz.au /research/mercury/download/gcc-backend.html   (618 words)

  
 Chapter 10: Mercury
Passages of Mercury in front of the Sun, or "Mercury Transits" in astronomical terminology, are comparatively rare events, due to the different orbital inclinations of the Earth and Mercury as they move around the Sun.
In order for a Mercury transit to happen, the planet must be located directly between the Earth and the Sun and also near one of the two points in its orbit where Mercury's orbital plane intersects that of the Earth.
The Mercury Transit of May 7 is also a kind of "general rehearsal" to the even rarer Venus Transit event on June 8, 2004.
www.williams.edu /Astronomy/jay/chapter10_etu6.html   (1493 words)

  
 Mercury MA-10
Mercury 10 was originally planned to be the first one-day Mercury flight.
This objective was later assigned to Mercury 9 and Mercury 10 then became the second one-day flight.
McDonnell was to screen all Mercury property for possible use in the Gemini program; any property McDonnell claimed would be transferred to Gemini by authority of the contracting officer at St Louis or the Cape.
www.astronautix.com /flights/meryma10.htm   (2505 words)

  
 [No title]
Mercury poisoning, when undetected, is often initially diagnosed as a psychiatric disorder (18).
This parallel is reinforced by parental reports of excessive amounts of mercury in urine or hair from younger autistic children, as well as some improvement in symptoms with standard chelation therapy (122).
It has been increasingly obvious that mercury should be screened for in autism which is why I have started to aggressively screen and treat this problem in the autistic children that I care for.
www.mercola.com /2000/oct/1/autism_mercury.htm   (3873 words)

  
 Jet Propulsion Laboratory
With Mariner 10, JPL engineers embarked on an experiment with an ingenious way of traveling through the solar system using the gravity of one planet to help propel the craft on to the next destination -- somewhat like a series of bank shots in a game of billiards.
With the scorched inner planet Mercury as its ultimate target, the final Mariner pioneered the use of a "gravity assist" swing by the planet Venus to bend its flight path.
Here a fortuitous gravity assist enabled the spacecraft to return at six-month intervals for close mapping passes over the planet, covering half the globe (Mercury’s slow rotation left the other half always in the dark when Mariner 10 returned).
www.jpl.nasa.gov /missions/past/mariner10.html   (189 words)

  
 Mercury 10 - Wikipedia, the free encyclopedia
In 2003 it was moved to the NASM (National Air and Space Museum) Udvar-Hazy Center at Dulles International Airport, near Washington, D.C. edit]
This New Ocean: A History of Project Mercury - NASA SP-4201
Mercury spacecraft no. 15A configuration specification (Mercury-Atlas No. 10) - NASA report (PDF format)
en.wikipedia.org /wiki/Mercury_10   (581 words)

  
 News-Star OnlineNASA memorial marks life of Mercury astronaut 10/17/04
Cooper, the youngest and perhaps cockiest of the original seven Mercury astronauts and the first man to spend more than 24 hours in space, died of natural causes Oct. 4 at his home in Ventura, Calif. He was 77.
His tree isn't far from that of fellow Mercury astronaut Virgil "Gus" Grissom, who died in the 1967 Apollo 1 fire.
Cooper was selected as a Mercury astronaut in 1959.
www.news-star.com /stories/101704/New_75.shtml   (459 words)

  
 The Mercury Project: Introduction   (Site not responding. Last check: 2007-10-20)
Mercury is a new logic/functional programming language, which combines the clarity and expressiveness of declarative programming with advanced static analysis and error detection features.
Mercury addresses the problems of large-scale program development, allowing modularity, separate compilation, and numerous optimization/time trade-offs.
Two new papers titled "Divide-and-query and subterm dependency tracking in the Mercury declarative debugger" and "The implementation of minimal model tabling in Mercury (extended abstract)" are now available from our papers page.
www.cs.mu.oz.au /research/mercury   (248 words)

  
 APOD: 2001 August 19 - Mercury: A Cratered Inferno   (Site not responding. Last check: 2007-10-20)
Mercury is the closest planet to the Sun, orbiting at about 1/3 the radius of the
Mercury slowly rotates, its surface temperature varies from an unbearably cold -180 degrees
The place nearest the Sun in Mercury's orbit changes slightly each orbit - a fact used by Albert Einstein to help verify the correctness of his then newly discovered theory of gravity:
antwrp.gsfc.nasa.gov /apod/ap010819.html   (150 words)

  
 Utility retests Allen Park homes for mercury - 10/01/00
   Lake said it's not the possible presence of mercury that bothers him but the fact that neighbors are being "left in the dark."
Regulators are used to measure the flow of gas flowing into residential meters.
Workers start with a device that gives an instant read and then set up air pumps which run for roughly eight hours to detect anything in the air.
www.detnews.com /2000/wayne/0010/04/c03-127887.htm   (379 words)

  
 Mercury : 10 years of Project ASTRO: Project ASTRO has touched more than 100,000 students over the past decade.(focus ...   (Site not responding. Last check: 2007-10-20)
Mercury : 10 years of Project ASTRO: Project ASTRO has touched more than 100,000 students over the past decade.(focus on education) @ HighBeam Research
In a sense, each astronomer gets to adopt a 4th-9th grade classroom, and typically visits his or her class (or sometimes a youth group) four or more times per school year, focusing on hands-on activities.
Read 'Mercury: 10 years of Project ASTRO: Project ASTRO has touched more than 100,000 students over the past decade.(focus on education)' with a FREE Trial for instant access »
static.highbeam.com /m/mercury/september012003/10yearsofprojectastroprojectastrohastouchedmoretha/index.html   (293 words)

  
 Catalog Page for PIA02440   (Site not responding. Last check: 2007-10-20)
Updated calibration and subsequent mosaicing have led to substantial improvements in the Mariner 10 color image data.
This color composite was formed to especially highlight differences in opaque minerals (such as ilmenite), Iron content, and soil maturity.
The Mariner 10 mission is managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, explored Venus in February 1974 on the way to three encounters with Mercury-in March and September 1974 and in March 1975.
photojournal.jpl.nasa.gov /catalog/PIA02440   (224 words)

  
 Celebrity South American Cruises.Mercury 10-Night Buenos Aires and Rio De Janeiro.Celebrity ...
The Caribbean is yours when you cruise on Mercury.
The Mercury - Relax in the comfort of the observation lounge.
Admire bouquets of fresh flowers and exquisite works of art as Mercury whisks you along the shimmering waters of the open sea.
www.planacruise.com /celmaps2/southammerc4bg.html   (323 words)

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