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Latest MESSENGER Stories

2011-06-28 20:36:50

Easily accessible starting point on messenger RNA increases protein formation Texts without spaces are not very legible, as they make it very difficult for the reader to identify where a word begins and where it ends. When genetic information in our cells is read and translated into proteins, the enzymes responsible for this task face a similar challenge. They must find the correct starting point for protein synthesis. Therefore, in organisms with no real nucleus, a point exists shortly...

2011-06-27 09:00:00

DELRAY BEACH, Fla., June 27, 2011 /PRNewswire/ -- Implementing an EHR system can be overwhelming for any doctor's practice, and even harder for a doctor that wants to attain Meaningful Use(1), but doesn't know where to start. As a part of our ongoing effort to assist doctors in their migration from paper to digital, Medical Messenger has partnered with ComputerAssistant.com to provide three key services to Medical Messenger customers: Perform an assessment to understand the system...

2011-06-23 08:05:30

MESSENGER Co-Investigator Scott Murchie, of the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., will be awarded the NASA Distinguished Public Service Medal, the highest honor that NASA bestows to an individual working outside the government. The award is granted only to individuals whose singular accomplishments contributed substantially to the NASA mission. Murchie is receiving the honor in recognition of his leadership of the Compact Reconnaissance Imaging...

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2011-06-16 14:20:00

NASA said on Thursday that its MESSENGER spacecraft completed its first perihelion passage from orbit around Mercury. The spacecraft entered orbit around Mercury on March 18, 2011, becoming the first spacecraft ever to do so. The space agency said tens of thousands of images of major features of the planet are now available in sharp focus, along with measurements of the chemical composition of Mercury's surface. MESSENGER has helped provide maps of the planet's topography and magnetic...

2011-06-16 12:18:00

WASHINGTON, June 16, 2011 /PRNewswire-USNewswire/ -- NASA scientists are making new discoveries about the planet Mercury. Data from MESSENGER, the first spacecraft to orbit Mercury, is giving scientists important clues to the origin of the planet and its geological history and helping them better understand its dynamic interior and exterior processes. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging...

2011-06-16 09:42:30

The MESSENGER spacecraft successfully completed its first orbit-correction maneuver on June 15 to reset its periapsis altitude "” the lowest point of MESSENGER's orbit about Mercury relative to the planet's surface "” from 506 kilometers to approximately 200 kilometers. MESSENGER was 198 million kilometers (123 million miles) from Earth when the maneuver began at 3:40 p.m. EDT. Mission controllers at The Johns Hopkins University Applied Physics Laboratory (APL) in...

2011-06-14 13:28:18

On Sunday, the MESSENGER spacecraft successfully completed the first of four "hot seasons" expected to occur during its one-year primary mission in orbit about Mercury. During these hot seasons, the Sun-facing side of the probe's sunshade can reach temperatures as high as 350°C. These hot conditions are the result of two concurrent circumstances, says MESSENGER Mission Systems Engineer Eric Finnegan, of the Johns Hopkins University Applied Physics Laboratory in Laurel, Md. "Mercury is in...

2011-06-13 06:38:22

NASA will host a news conference at 1 p.m. EDT on Thursday, June 16, to reveal new images and science findings from the first spacecraft to orbit Mercury. The event will be held in the NASA Headquarters auditorium located at 300 E St. SW, in Washington. NASA Television and the agency's website will broadcast the event. NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging, or MESSENGER spacecraft conducted more than a dozen laps through the inner solar system for six years...

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2011-06-08 13:28:33

Robert Strom Forty years ago, in 1971, I became a member of the Mariner 10 imaging science team. This Mercury flyby mission was intended to gather atmospheric data at Venus and geological and geophysical data at Mercury in preparation for a Mercury orbiter mission. At that time we knew almost nothing about the innermost planet, and the Mariner 10 flybys were intended to help in the selection of an instrument payload for an orbital mission. The Mariner 10 spacecraft flew by Venus once and...

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2011-06-01 08:57:18

Mercury and its environment constitute a complex system that includes interactions among the interplanetary medium, the planet's magnetic field, its tenuous atmosphere (or exosphere), and its surface. Mercury's environment includes the solar wind and photon flux (flowing charged particles and light), solar and galactic cosmic rays, and the steady bombardment by micrometeoroids (solar system dust particles). The interactions of these elements of the space environment with the surface generate...


Latest MESSENGER Reference Libraries

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2004-10-19 04:45:40

The Planet Mercury -- in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon as it completes each revolution about the sun, although the visible disk varies in size with respect to its distance from the earth. Because its greatest elongation is 28, it is seen only for a short time after sunset or before sunrise. Since observation of Mercury is...

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