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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...

Spotlight


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)

Related


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

Resources


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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H20+


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)

News


Planet Mercury - Google News
  • When is Mercury in retrograde in 2017, what does the astrological event mean and how long will it last? - The Sun Today 5:55 am
    The SunWhen is Mercury in retrograde in 2017, what does the astrological event mean and how long will it last?The SunAfter starting on April 9, the planet Mercury will be in retrograde until May 3. A planet is classed as being in retrograde when it appears to move backwards in an opposite direction to Earth. Astrologists believe that when a planet is in retrograde ...
  • Jupiter and the theory of relativity blamed for course changes of ... - Phys.Org Today 2:43 am
    Phys.OrgJupiter and the theory of relativity blamed for course changes of ...Phys.OrgThe famous Barringer meteor crater in Arizona, which was created by an impact about 50 000 years ago. Credit: D. Roddy, Lunar Planetary Institute, NASA.and more »
  • Listen to Sufjan Stevens, Bryce Dessner of The National, Others Channel the Planet Mercury in New Planetarium Track - Paste Magazine Tuesday
    Paste MagazineListen to Sufjan Stevens, Bryce Dessner of The National, Others Channel the Planet Mercury in New Planetarium TrackPaste MagazineA Sufjan Stevens album with Bryce Dessner of The National about outer space sounds almost to good to be true—but it's very real and true! The forthcoming album, to be released June 9 via 4AD and titled Planetarium, is a recording of Stevens, Dessner, ...Sufjan Stevens, Bryce Dessner, Nico Muhly, James McAlister - Mercury (Official Video)YouT...
  • After reading about Mercury Retrograde, it all makes sense now - Oxford Eagle Monday
    After reading about Mercury Retrograde, it all makes sense nowOxford EagleAccording to the several websites I read about the subject, the planet Mercury appears to be moving backward in the sky for a period of about three weeks and this happens a few times a year. Apparently, this recent event started April 9 and is expected ...
  • Space Matter: Mercury Is in Retrograde. Don't Panic. - Paste Magazine Apr 20, 2017
    Paste MagazineSpace Matter: Mercury Is in Retrograde. Don't Panic.Paste MagazineWe've known about Mercury, and its retrograde motions, since ancient times. An Assyrian astronomer, dating back to the 14th century BC, referred to Mercury as “the jumping planet” in cuneiform tablets. The planet is named after the Roman messenger god ...
  • Why Does Mercury Turn Retrograde So Often? There's A Reason It Feels Like This Planet Is Always Throwing Things ... - Bustle Apr 13, 2017
    BustleWhy Does Mercury Turn Retrograde So Often? There's A Reason It Feels Like This Planet Is Always Throwing Things ...BustleHold on to your butts, friends, because Mercury is retrograde yet again. The harbinger of communication snafus, upset travel plans, and heightened flux will plague us with its pesky presence for another few weeks, so feel free to commence groaning.
  • When is Mercury in retrograde in 2017, how long will it last and what does the astrological event mean? - The Sun Apr 13, 2017
    The SunWhen is Mercury in retrograde in 2017, how long will it last and what does the astrological event mean?The SunAfter starting on April 9, the planet Mercury will be in retrograde until May 3. A planet is classed as being in retrograde when it appears to move backwards in an opposite direction to Earth. Astrologists believe that when a planet is in retrograde ...10 Things You're Not Supposed To Do During Mercury RetrogradeBustleall 2 news articles »
  • When Is The Next Mercury Retrograde In 2017? This Planet Is About ... - Bustle Apr 9, 2017
    BustleWhen Is The Next Mercury Retrograde In 2017? This Planet Is About ...BustleChances are, you've probably heard of Mercury retrograde and how it can wreak havoc on everyone's lives. The phenomenon — which occurs every so often ...Mercury Just Went Retrograde Again, This Time In Taurus & Aries ...Collective EvolutionMercury Retrograde Has Begun! | The Huffington PostHuffington PostHow to survive Mercury retrograde - Raw StoryRaw Storyall 5 news articles »
  • What is the Average Surface Temperature of Mercury? - Universe Today Apr 6, 2017
    Universe TodayWhat is the Average Surface Temperature of Mercury?Universe TodayOf all the planets in the Solar System, Mercury is the closest to our Sun. As such, you would think it is the hottest of all the Solar planets. But strangely enough, it is not. That honor goes to Venus, which experiences an average surface temperature ...
  • Mercury Retrograde For 2017 Starts April 9 In Taurus & Things Are ... - Bustle Apr 3, 2017
    BustleMercury Retrograde For 2017 Starts April 9 In Taurus & Things Are ...BustleThe planet Mercury rules all types of communication, and things are about to go haywire. That's right, the first full Mercury Retrograde of 2017 starts April 9 and ...and more »

NASA Messenger Mercury - Google News
  • Aerojet Rocketdyne Propulsion Guides Cassini on its Grand Finale at Saturn - GlobeNewswire (press release) Today 8:08 am
    Aerojet Rocketdyne Propulsion Guides Cassini on its Grand Finale at SaturnGlobeNewswire (press release)This is not the first time NASA has ended an orbiting mission with a fiery re-entry into a planet. Aerojet Rocketdyne propulsion has facilitated the end of NASA's Magellan and Mercury MESSENGER missions, among others. In late 2016, the Cassini ...and more »
  • Portraits of the Earth-Moon System - The Atlantic Monday
    The AtlanticPortraits of the Earth-Moon SystemThe AtlanticThe Earth straddling the limb of the moon, as seen from above Compton crater by NASA's Lunar Reconnaissance Orbiter on October 12, 2015. The large tan area in the upper right is the Sahara desert, and just beyond is Saudi Arabia. The Atlantic and ...Lunar, Martian Greenhouses Designed to Mimic Those on Earth | NASANASAall 56 news articles »
  • What Earth looks like from other planets - Astronomy Magazine Apr 21, 2017
    Astronomy MagazineWhat Earth looks like from other planetsAstronomy MagazineNASA's Cassini spacecraft is on the final chapter of its almost 20-year-long mission, scheduled to end September 15, 2017. While Cassini was passing by Saturn on April 12, 2017, it took one last image of Earth from Saturn, 870 million miles (1.4 ...NASA Missions Provide New Insights into 'Ocean Worlds' | NASANASACassini finds molecular hydrogen in the Enceladus plume: Evidence for hydrothermal processes | ScienceScien...
  • Refit Bomber Aircraft Will Help Scientists Study the Total Solar Eclipse - Space.com Apr 13, 2017
    Space.comRefit Bomber Aircraft Will Help Scientists Study the Total Solar EclipseSpace.com"These will be the first measurements of their kind," Tsang said, pointing out that the infrared range captured by these cameras is outside the range studied by spacecraft such as NASA's MESSENGER mission to Mercury and the upcoming BepiColombo, ...and more »
  • What is the Average Surface Temperature of Mercury? - Universe Today Apr 6, 2017
    Universe TodayWhat is the Average Surface Temperature of Mercury?Universe TodayOf all the planets in the Solar System, Mercury is the closest to our Sun. As such, you would think it is the hottest of all the Solar planets. But strangely enough, it is not. That honor goes to Venus, which experiences an average surface temperature ...
  • Private Sector Space Flying High In Phoenix - KJZZ Apr 5, 2017
    KJZZPrivate Sector Space Flying High In PhoenixKJZZBut a canceled shuttle program, ambiguous NASA goals and budgets, and a rapidly expanding satellite launch demand have in recent years created a market big enough for entrepreneurs to step up. It's big business: A Satellite Industry Association report ...
  • Mercury's Water Ice Deposits Have a Mysterious Origin - Seeker Feb 8, 2017
    SeekerMercury's Water Ice Deposits Have a Mysterious OriginSeekerThe researchers based their information on the Mercury Laser Altimeter instrument on the now-complete NASA MESSENGER mission, which crashed into Mercury as planned in 2015. Previously, a combination of Earth-based radar and neutron data ...and more »
  • Weird Landscape Shows That Mercury's No 'Dead' Planet - Seeker Nov 29, 2016
    SeekerWeird Landscape Shows That Mercury's No 'Dead' PlanetSeekerMercury also hosts water ice and has organic chemistry. It's also, weirdly, shrinking. NASA's MESSENGER - which stands for Mercury Surface, Space Environment, Geochemistry and Ranging - spent nearly a decade examining Mercury in both flybys and ...
  • 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 DailyScientists Discovered a Mind-Boggling Chasm on MercuryGizmodoNASA: Mercury Is Shrinking, Great Valley Evidenc...
  • Great valley found on Mercury - Science Daily Nov 17, 2016
    Clarksville OnlineGreat 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.NASA's MESSENGER spacecraft finds Great Valley on MercuryClarksville OnlineThe 1000km long 'great valley' on Mercury that dwarfs the Grand Canyon and Africa's Great Rift - and could h...



© Cosma creator mehopper editor mehopper revised 7/16/2016 v.1.5
  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