NASA Daily News Summary
For Release: April 1, 1999
Media Advisory m99-064

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Summary

-- Video File for April 1: Hubble Heritage Picture: Tarantula 
   Nebula

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There are no news releases scheduled for April 1, 1999.

If NASA issues any news releases later today, we will 
e-mail summaries and Internet URLs to this list.

Index of 1999 NASA News Releases:
     http://www.nasa.gov/releases/1999/index.html

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VIDEO FILE FOR April 1, 1999

ITEM 1 HUBBLE HERITAGE PICTURE: TARANTULA NEBULA
ITEM 2 LANDSAT 7 MISSION: LOOKING AT EARTH'S ENVIRONMENT 
(replay)

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ITEM 1 Hubble Heritage Picture: Tarantula Nebula
     At the center of a violent starburst region lies a 
cluster of brilliant, massive stars, known to astronomers as 
Hodge 301. Hodge 301, seen in the lower right-hand corner of 
this image, lives inside the Tarantula Nebula in our nearest 
galactic neighbor, the Large Magellanic Cloud. Many of the 
stars in Hodge 301 are so old that they have exploded as 
supernovae. These exploded stars are blasting material out 
into the surrounding region at speeds of almost 300 miles per 
second, creating a multitude of sheets and filaments, seen in 
the upper left portion of the picture. Hodge 301 contains 
three so called red supergiants - stars that are close to the 
end of their evolution and are about to become supernovae, 
exploding and sending more shocks into the Tarantula. Also 
present near the center of the image are small, dense gas 
globules and dust columns where new stars are being formed 
today, as part of the overall ongoing star formation 
throughout the Tarantula region.

Contact at Headquarters: Donald Savage, 202/358-1727;
Contact at Space Telescope Science Institute: Ray Villard, 
410/338-4514.

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ITEM 2 Landsat 7 Mission: Looking at Earth's Environment 
(replay)
     Landsat 7, scheduled for launch April 15, will gather 
data from Earth's land surface and surrounding coastal 
regions. Analysis of the data will provide scientists with 
new information on deforestation, receding glaciers and crop 
monitoring. The data also will be available commercially for 
land-use planning and urban development issues. Landsat 7 is 
the last in a series of satellites that began with the 
Landsat 1 in 1972.
 
  ITEM 2A Landsat Animations
  ITEM 2B Collecting the Data
  ITEM 2C Making the Images - The Layers of San Francisco
  ITEM 2D Electromagnetic Spectrum
  ITEM 2E Landsat 7 is Readied at Valley Forge, PA
  ITEM 2F Scientists at EROS Data Center
  ITEM 2G Students at the University of Maryland
  ITEM 2H The Landsat Series - Historical Footage
  ITEM 2I Interview - Phil Sabelhaus, Project Manager
  ITEM 2J Interview - Darrel Williams, Project Scientist
  ITEM 2K Interview - Sam Goward, Science Team Leader
  ITEM 2L Urban Growth
  ITEM 2M Deforestation
  ITEM 2N Atlanta Heat Island
  ITEM 2O Flood Comparison on the Mississippi River
  ITEM 2P Aftereffects of a Volcanic Eruption
  ITEM 2Q Fire Damage of a Conifer Forest
  ITEM 2R Impact Craters
  ITEM 2S Mexico City
  ITEM 2T Grand Canyon
  ITEM 2U Chesapeake Bay
  ITEM 2V International Views

Contact at Headquarters: David E. Steitz, 202/358-1730;
Contact at Goddard Space Flight Center: Lynn Chandler, 
301/614-5562;
Contact at U.S. Geological Survey: Catherine Watson, 703/648-
4732.

The NASA Video File airs at noon, 3, 6, 9 p.m. and midnight 
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Contract Awards

Contract awards are posted to the NASA Acquisition 
Information Service Web site.:

http://procurement.nasa.gov/EPS/award.html

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end of daily news summary