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Magnificant Details in a Dusty Spiral Galaxy

In 1995, the majestic spiral galaxy NGC 4414 was imaged by the Hubble Space Telescope as part of the HST Key Project on the Extragalactic Distance Scale. An international team of astronomers, led by Dr. Wendy Freedman of the Observatories of the Carnegie Institution of Washington, observed this galaxy on 13 different occasions over the course of two months. Images were obtained with Hubble's Wide Field Planetary Camera 2 (WFPC2) through three different color filters. Based on their discovery and careful brightness measurements of variable stars in NGC 4414, the Key Project astronomers were able to make an accurate determination of the distance to the galaxy. The resulting distance to NGC 4414, 19.1 megaparsecs or about 60 million light-years, along with similarly determined distances to other nearby galaxies, contributes to astronomers overall knowledge of the rate of expansion of the universe. In 1999, the Hubble Heritage Team revisited NGC 4414 and completed its portrait by observing the other half with the same filters as were used in 1995. The end result is a stunning full-color look at the entire dusty spiral galaxy. The new Hubble picture shows that the central regions of this galaxy, as is typical of most spirals, contain primarily older, yellow and red stars. The outer spiral arms are considerably bluer due to ongoing formation of young, blue stars, the brightest of which can be seen individually at the high resolution provided by the Hubble camera. The arms are also very rich in clouds of interstellar dust, seen as dark patches and streaks silhouetted against the starlight

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STS-57 Launch

The first flight of the commercially developed SPACEHAB laboratory module begins with the flawless liftoff of the Space Shuttle Endeavour from Launch Pad 39B at 9:07:22 a.m. EDT, June 21, 1993. Also planned for the eight-day flight of Mission STS-57 is the retrieval of the European Retrievable Carrier (EURECA). Onboard for the fourth flight of Endeavour are a crew of six: Mission Commander Ronald J. Grabe; Pilot Brian Duffy; Payload Commander G. David Low; and Mission Specialists Nancy Jane Sherlock, Peter J.K. "Jeff" Wisoff, and Janice E. Voss. The first launch attempt on June 20 was scrubbed due to unacceptable weather conditions both at KSC and the overseas contingency landing sites

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Jupiters Great Red Spot

As Voyager 1 flew by Jupiter, it captured this photo of the Great Red Spot. The Great Red Spot is an anti-cyclonic (high- pressure) storm on Jupiter that can be likened to the worst hurricanes on Earth. An ancient storm, it is so large that three Earths could fit inside it. This photo, and others of Jupiter, allowed scientists to see different colors in clouds around the Great Red Spot which imply that the clouds swirl around the spot (going counter-clockwise) at varying altitudes. The Great Red Spot had been observed from Earth for hundreds of years, yet never before with this clarity and closeness (objects as small as six hundred kilometers can be seen). The Voyager mission has been managed by NASA's Office of Space Science and the Jet Propulsion Laboratory

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