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Mercury : (1) a Roman god of commerce, eloquence, travel, cunning, and theft who serves as messenger to the other gods — compare hermes b often capitalized archaic : a bearer of messages or news or a conductor of travelers (2) the planet nearest the sun (Mercury, 2015) [1]blank.gifWebster blank.gif
Mercury is the innermost and smallest planet in the Solar System, orbiting the Sun once every 87.969 Earth days. The orbit of Mercury has the highest eccentricity of all the Solar System planets, and it has the smallest axial tilt. It completes three rotations about its axis for every two orbits. Mercury is bright when viewed from Earth, ranging from −2.3 to 5.7 in apparent magnitude, but is not easily seen as its greatest angular separation from the Sun is only 28.3°. Since Mercury is normally lost in the glare of the Sun, unless there is a solar eclipse it can be viewed from Earth's Northern Hemisphere only in morning or evening twilight, while its extreme elongations occur in declinations south of the celestial equator, such that it can be seen at favorable apparitions from moderate latitudes in the Southern Hemisphere in a fully dark sky.(Mercury, 2015) [2]blank.gif Wikipedia blank.gif more...


Spacecraft Crashes Into Mercury - IGN News

Messenger's final image before crashing into the surface of Mercury

Spacecraft Crashes into Mercury at Insane Speed (Nadia Drake, National Geographic)
Messenger's final image before crashing into the surface of Mercury (Michelle Starr, CNET)

New Images of Mysterious Mercury

When Space Probes Crash--For Science And Otherwise (Loren Grush, Popular Science)

More YouTube videos about Messenger...
NASA Messenger: Mission to Mars (NASA)

Messenger Reveals Mercury Is Not What Scientists Theorized (NPR)
How Mercury is like Saturn (and other surprises from NASA's orbiter) (Pete Spotts, Christian Science Monitor)


solar system
star blank.gif Sun (Sol)
planets blank.gif Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune blank.gif
dwarf planets blank.gif Ceres | Pluto | Haumea | Makemake | Eris

satellites blank.gif Earth | Mars | Jupiter | Saturn | Uranus | Neptune blank.gif Pluto | Haumea | Eris
other objects blank.gif asteroid | comet


Mercury: Crash Course Astronomy #13

The Inner Planet Mercury

The Nine Planets - Mercury

Solar System Exploration, Mercury (NASA)
Photo Journal, Mercury (NASA, JPL)

These are links to resources organized by a classification scheme developed exclusively for Cosma. more...


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Watch NASA Presser on Messenger's Evidence for Ice on Mercury

Mercury Has Enough Ice To Bury Washington Under Two Miles (Slate News)

Mercury's north pole is probably chock full of ice (Christopher MacManus, CNET)
Frozen Water and Organic Material Discovered on Mercury (Adam Mann, Wired Science)


Planet Mercury - Google News
  • Sidhu May Swing It Big In Upcoming Elections, But A Political Century Seems Unlikely - Yahoo News Saturday
    Yahoo NewsSidhu May Swing It Big In Upcoming Elections, But A Political Century Seems UnlikelyYahoo NewsPlanet Mercury – the planet of intelligence, humour and mental agility is exalted in the Birth Chart of Sidhu. This placement blesses him with a wonderful sense of humour and sharpness. Mercury and Venus are both powerful in the Horoscope of Navjot and ...
  • How Long is a Year on Mercury? - Universe Today - Universe Today Feb 15, 2017
    Universe TodayHow Long is a Year on Mercury? - Universe TodayUniverse TodayOwing to its rapid orbital period, a year on Mercury lasts about 88 days, which means a year is only half as long as a single day.and more »
  • Showing some Valentine's Day love for the planet (From Milford ... - Milford Mercury Feb 14, 2017
    Milford MercuryShowing some Valentine's Day love for the planet (From Milford ...Milford MercuryServing up the climate change message with their Valentine's Day green hearts are members of Narberth WI. PICTURE: Gareth Davies Photography. 9 hrs ago.and more »
  • What Your Zodiac Sign Says About Your Love Life This Week - Brides.com Feb 13, 2017
    Brides.comWhat Your Zodiac Sign Says About Your Love Life This WeekBrides.comWith your planetary ruler Mercury sextile the sexual planet of Mars from February 14th–18th, you're going to have quite the stimulating V-Day, both intellectually and physically. And with the moon in Libra trine (another goodie) your sun sign this love ...
  • BepiColombo: Joint Mission to Mercury - Space.com Feb 10, 2017
    Space.comBepiColombo: Joint Mission to MercurySpace.comThe mission includes a carrier spacecraft called the Mercury Transfer Module (MTM) – which supplies electrical power during interplanetary cruise – and two separate orbiters. The European Space Agency's spacecraft is the Mercury Planet Orbiter (MPO ...
  • Aquarius, February 2017 - Broadly Feb 2, 2017
    Aquarius, February 2017BroadlyYou'll definitely have plenty to say this month: Communication planet Mercury will enter your sign on February 7. This is a big shift after having Mercury in Capricorn, which inspired you to be more reserved than usual. In fact, you've been so quiet ...and more »
  • How To See The Brightest Planets In The Sky In February 2017 - Bustle Feb 1, 2017
    BustleHow To See The Brightest Planets In The Sky In February 2017BustleIf you're searching for a way to distract yourself from all the nonsense Earthlings are currently putting each other through, try directing your gaze toward the ...and more »
  • Gemini, February 2017 - Broadly Feb 1, 2017
    Gemini, February 2017BroadlyIt's an exciting Groundhog's Day indeed, as your ruling planet, Mercury, will clash with Jupiter on February 2. The energy is over-the-top, and some big ideas are floating in the air, but don't get carried away—although the vibe will be stimulating ...and more »
  • Image of the Day: Tectonically Active Planet Mercury - Jewish Business News Jan 30, 2017
    Jewish Business NewsImage of the Day: Tectonically Active Planet MercuryJewish Business NewsIt's small, it's hot, and it's shrinking. New research suggests that Mercury is contracting even today, joining Earth as a tectonically active planet. Images obtained by NASA reveal previously undetected small fault scarps— cliff-like landforms that ...
  • Stargazing: Mercury and the crescent moon | Pittsburgh Post-Gazette - Pittsburgh Post-Gazette Jan 23, 2017
    Pittsburgh Post-GazetteStargazing: Mercury and the crescent moon | Pittsburgh Post-GazettePittsburgh Post-GazetteThis week, stargazers can test their viewing skills by locating the closest planet to the sun, Mercury.and more »

NASA Messenger Mercury - Google News
  • Mercury's Water Ice Deposits Have a Mysterious Origin - Seeker - Seeker Feb 8, 2017
    SeekerMercury's Water Ice Deposits Have a Mysterious Origin - SeekerSeekerNew analysis of observations made by NASA's MESSENGER mission reveal where the solar system's innermost planet's water ice is but not where it's from.and more »
  • Nuclear winter with iron snow discovered on Mercury - Space Daily - Space Daily Jan 23, 2017
    Nuclear winter with iron snow discovered on Mercury - Space DailySpace DailyMoscow (Sputnik) Jan 24, 2017 - Mercury, the smallest and innermost planet in the Solar System has its own magnetic field like the Earth, scientist revealed.and more »
  • MESSENGER data reveals great valley on Mercury - Astronomy Now Online Nov 17, 2016
    Astronomy Now OnlineMESSENGER data reveals great valley on MercuryAstronomy Now OnlineA full-colour composite image of Mercury taken during the first flyby of NASA's MESSENGER spacecraft on 14 January 2008. Mercury has a diameter of 3030 miles, or 38 percent that of the Earth. With virtually no atmosphere, the inner planet's heavily ...Giant 'great valley' found on MercuryScience DailyNASA: Mercury Is Shrinking, Great Valley Evidence ShowsNature World NewsNASA News: Great Valley Found; Planet...
  • Great valley found on Mercury - Science Daily Nov 17, 2016
    Daily MailGreat valley found on MercuryScience Daily... the planet's outer silicate shell in response to global contraction. The researchers discovered the valley using a new high-resolution topographic map of part of Mercury's southern hemisphere created by stereo images from NASA's MESSENGER spacecraft.The 1000km long 'great valley' on Mercury that dwarfs the Grand Canyon and Africa's Great Rift - and could help ...Daily Mail'Great Valley' on Mercury Points to Shrinking PlanetSpace.comMercu...
  • Mercury still has earthquakes and shrinks by the day - NASA - RT Sep 27, 2016
    RTMercury still has earthquakes and shrinks by the day - NASARTImages were obtained by NASA's mission dubbed MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging), with the findings published in the October issue of Nature Geoscience. Over the last 18 months of the MESSENGER ...Shrinking Mercury is tectonically activeAstronomy Now OnlineMercury found to be tectonically activePhys.OrgMercury Is Geographically Active Like Earth, NASA DiscoveredNewsmaxiTech Post -Un...
  • Mercury Mystery Solved: Scientists Decode Planet's Weird Surface - Space.com Aug 29, 2016
    Space.comMercury Mystery Solved: Scientists Decode Planet's Weird SurfaceSpace.comUsing data from NASA's MESSENGER spacecraft — which orbited Mercury from 2011 to 2015 — scientists at the Johnson Space Center took a closer look at how a mix of young and old terrain could develop. [Photos of Mercury from NASA's Messenger ...
  • NASA MESSENGER: Meteorite Key To Resolving Mercury, 5800 ... - Science World Report Jun 29, 2016
    Science World ReportNASA MESSENGER: Meteorite Key To Resolving Mercury, 5800 ...Science World ReportGeologists at Massachusetts Institute of Technology (MIT) have deciphered the history of Mercury from a rare meteorite through collecting measurements of the ...This Rare Meteorite Found on Earth Could Be Traced to Mercury's OriginsNature World Newsall 7 news articles »
  • NASA unveils first Mercury topography maps from MESSENGER craft - ExtremeTech May 10, 2016
    ExtremeTechNASA unveils first Mercury topography maps from MESSENGER craftExtremeTechMESSENGER, the Mercury explorer, made 4,104 orbits around the planet closest to our sun. Originally sent for a one-year science sortie, MESSENGER far outlasted its planned expiry and stayed in orbit around Mercury, protected by its ceramic cloth ...NASA Releases First-Ever Global Topographic Model Of MercuryNDTVVIDEO: NASA's MESSENGER Unveils First Global Topographic Model of MercurySpaceCoastDaily.comMy...
  • NASA Mercury Messenger spacecraft reveals 'secret' of planet's famously dark surface - Mirror.co.uk Mar 7, 2016
    The VergeNASA Mercury Messenger spacecraft reveals 'secret' of planet's famously dark surfaceMirror.co.ukThe probe which travelled around the planet beaming back data to scientists back home offered up nuggets of information before its disappearance into the ether. And like Earth's Moon and a variety of other planets within the solar system, Mercury once ...We finally know how Mercury gets its dark gray color: an ancient ...The VergeMercury's carbon-rich crust is surprisingly ancient, MESSENG...
  • Farewell, MESSENGER! NASA Probe Crashes Into Mercury - Space.com Apr 30, 2015
    Space.comFarewell, MESSENGER! NASA Probe Crashes Into MercurySpace.comThe region of Mercury where NASA's MESSENGER spacecraft crashed on April 30, 2015. This image was taken by MESSENGER during the course of its work at Mercury and so does not show the resulting crater. Higher-elevation regions are colored red in ...NASA's Messenger spacecraft crashes into MercuryFox NewsNASA's Messenger crashes into Mercury: Scientists mournLos Angeles TimesWatch NASA's MESSENGER Crash Into Mercury Afte...

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  1. ^ Mercury. (2015). In Merriam-Webster Online Dictionary (11th ed.). Retrieved July 11, 2015, from http://www.merriam-webster.com/dictionary/Mercury
  2. ^ Mercury. (2015). In Wikipedia, The Free Encyclopedia. Retrieved July 11, 2015, from http://en.wikipedia.org/wiki/Mercury_%28planet%29