Latest Pioneer Venus project Stories

ESA's Venus Express Probe Is On The Rise One Final Time
2014-07-14 14:35:17

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online The planet Venus has often been referred to as Earth’s Twin, or Earth’s Sister, because in many ways it bears a striking similarity to the world we call home. But while it is roughly the same size, similar mass, possesses a magnetic field, and maintains an atmosphere, there are also some very important differences. Perhaps the most significant departure is the exact nature of Venus’s atmosphere. Surrounding our...

Sulphur Dioxide Detected On Venus Points To Active Volcanoes
2012-12-03 08:16:38

Lawrence LeBlond for redOrbit.com - Your Universe Online The European Space Agency (ESA) has been observing Earth´s sister planet for six years with its polar orbiter Venus Express. During its visit of the second planet from the sun, the orbiter has shown huge changes in sulphur dioxide content in the planet´s atmosphere, leading experts to believe volcanic activity has been increasing on the surface of Venus. ESA officials explain that Venus´s thick atmosphere contains...

Mysterious Arc Of Venus To Be Seen During Transit
2012-06-05 09:16:17

When Venus transits the sun on June 5th and 6th, an armada of spacecraft and ground-based telescopes will be on the lookout for something elusive and, until recently, unexpected: The Arc of Venus. "I was flabbergasted when I first saw it during the 2004 transit," recalls astronomy professor Jay Pasachoff of Williams College. "A bright, glowing rim appeared around the edge of Venus soon after it began to move into the sun." For a brief instant, the planet had turned into a "ring of...

A Magnetic Surprise For Venus Express
2012-04-06 04:04:01

Venus is a rarity among planets - a world that does not internally generate a magnetic field. Despite the absence of a large protective magnetosphere, the near-Venus environment does exhibit a number of similarities with planets such as Earth. The latest, surprising, example is the evidence for magnetic reconnection in Venus' induced magnetotail. Planets which generate magnetic fields in their interiors, such as Earth, Mercury, Jupiter and Saturn, are surrounded by invisible...

Image 1 - Venus Weather Not So Boring After All
2011-09-28 04:26:59

At first glance, a weather forecaster for Venus would have either a really easy or a really boring job, depending on your point of view. The climate on Venus is widely known to be unpleasant -- at the surface, the planet roasts at more than 800 degrees Fahrenheit under a suffocating blanket of sulfuric acid clouds and a crushing atmosphere more than 90 times the pressure of Earth's. Intrepid future explorers should abandon any hope for better days, however, because it won't change much....

JAXA Successfully Tests Engine Of Akatsuki Venus Probe
2011-09-08 10:38:01

  Japan's space agency said that it had successfully test-fired the engine of its "Akatsuki" space probe. The Japan Aerospace Exploration Agency (JAXA) said a remote test ignition conducted Wednesday lasted for 2 seconds as planned. "The failure in December was highly likely due to engine damage," JAXA spokesman Eijiro Namura said in a statement. "We have made the first step forward by igniting the engine for the first time since then," to assess its condition, he said....

2011-04-08 11:54:47

New analysis of images taken by ESA's Venus Express orbiter has revealed surprising details about the remarkable, shape-shifting collar of clouds that swirls around the planet's South Pole. This fast-moving feature is all the more surprising since its center of rotation is typically offset from the geographical pole. The results of this study are published online in Science Express today. Several planets in the Solar System, including Earth, have been found to possess hurricane-like polar...

2010-09-27 07:00:00

Despite the great differences between the atmospheres of Venus and Earth, scientists have discovered that very similar mechanisms produce lightning on the two planets. The rates of discharge, the intensity and the spatial distribution of lightning are comparable, thus scientists hope to be able to better understand the chemistry, dynamics and evolution of the atmospheres of the two planets. These results were presented by Dr. Christopher Russell at the European Planetary Science Congress, on...

2008-03-13 08:52:09

Venus Express has constantly been observing the south pole of Venus and has found it to be surprisingly fickle. An enormous structure with a central part that looks like the eye of a hurricane, morphs and changes shape within a matter of days, leaving scientists puzzled. The eye of the hurricane is at the centre of a 2000 km-wide vortex. It was discovered in 1974 by the Mariner 10 spacecraft. There is a similar structure on the planet's north pole, which was observed by the Pioneer Venus...

2007-04-11 07:55:00

One year has passed since April 11, 2006, when Venus Express, Europe's first mission to Venus and the only spacecraft now in orbit around the planet, reached its destination. Since then, this advanced probe, born to explore one of the most mysterious planetary bodies in the Solar System, has been revealing planetary details never caught before. Intensively visited by several Russian and American probes from the 60s to the early 90s, Venus has always represented a puzzling target for...

Latest Pioneer Venus project Reference Libraries

2009-07-06 12:24:05

The Pioneer Program is a series of American unmanned space missions designed for planetary exploration. The program included a number of missions, but the most well-known missions were Pioneer 10 and Pioneer 11. Both Pioneer 10 and 11 explored the outer planets and left our solar system. Both probes carry a gold plaque, depicting a man and a woman and information about the origin of the probes and their creators. The Pioneer probe was named by Stephen A. Saliga, who was chief designer of Air...

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Word of the Day
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.