![]() From previous missions, astronomers know that such features travel east to west along with the Venus' prevailing winds, to make a complete circuit around the planet in four days. The dark regions show the location of enhanced sulfur dioxide near the cloud tops. The polar regions are bright, possibly showing a haze of small particles overlying the main clouds. Bright clouds toward Venus' poles appear to follow latitude lines. This global feature might indicate atmospheric waves, analogous to high and low pressure cells on Earth. Similar features were seen from Mariner 10, Pioneer Venus, and Galileo spacecrafts. In particular, a horizontal "Y"-shaped cloud feature is visible near the equator. At ultraviolet wavelengths cloud patterns become distinctive. ![]() These clouds permanently shroud Venus' volcanic surface, which has been radar mapped by spacecraft and from Earth-based telescope. Venus is covered with clouds made of sulfuric acid, rather than the water-vapor clouds found on Earth. This is a NASA Hubble Space Telescope ultraviolet-light image of the planet Venus, taken on January 24 1995, when Venus was at a distance of 70.6 million miles (113.6 million kilometers) from Earth. That process produces electrons that re-emit the absorbed energy in the form of infrared light, according to a statement from NASA.Venus Cloud Tops Viewed by Hubble. Scientists classify it as an emission nebula because its gas has been energized, or ionized, by the radiation of nearby stars. Stretching over 250 light-years wide, IC 4628 is believed to be a massive stellar nursery, where new stars are forming. Nebulas, or clouds of interstellar gas and dust, form following massive stellar explosions in turn, this interstellar material gives life to new stars. The Prawn Nebula, formally known as IC 4628, is an emission nebula located 6,000 light-years from Earth, in the constellation Scorpius. The Hubble Space Telescope has captured a stunning view of the Prawn Nebula floating through deep space. ![]() Tan (Chalmers University of Technology) Processing Gladys Kober (NASA/Catholic University of America)) Prawn nebula Related: This galaxy pic from Hubble shows how astronauts fixed its vision Prev of 60 Next Prev of 60 Next "Even accounting for the aberration in Hubble's mirror, the space telescope's image (right) offers more clarity than what was generally possible with ground-based observations," NASA said in a statement. It was also intended to help with focusing the telescope. The image, taken using Hubble's Wide Field Planetary Camera and released May 20, 1990, demonstrate Hubble's improved visibility compared with observatories on Earth, where the atmosphere can obstruct the view. On the left is an image of the same patch of the sky taken by a ground-based telescope. On the right is the first image Hubble ever took, which focused on the 8.2-magnitude star HD96755 in the star cluster NGC 3532. Persson/Las Campanas Observatory/Observatories of the Carnegie Institution of Washington Right: NASA/ESA/STScI) First Lightīefore Hubble could start capturing incredible pictures of the universe, the telescope's first order of business was to test out its instruments and make sure everything was in working order.
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