May 28, 1998
Odd Auroral arc seen crossing the north pole, leaving scientists with a puzzle no model explains.
May 27, 1998
Shuttle experiments yield new information on how soil and powders behave like liquids under low pressure like those experienced during earthquakes or the manufacture of cosmetics.
May 22, 1998
the search for life elsewhere will begin by careful study of life growing under severe conditions on earth
May 20, 1998
puts the evolution of neutron stars and galaxies in a new light.
May 19, 1998
from urban development. NASA scientists study the phenomenon of "urban heat islands" to understand the impact of development on climate, collecting data by flying over the city with advanced thermal sensors.
May 19, 1998
NASA's Lightningsensor confirms striking pattern in images taken from space.
May 15, 1998
May 6, 1998
A cosmic explosion of gamma-rays from near the edge of the known universe - announced today by NASA - is only the latest piece in 30-year scientific puzzle. Explore the trail of discovery that has led scientists to learn that these daily events each release more energy in 10 seconds than the Sun will emit in its entire 10-billion year lifetime.
May 1, 1998
The quest to understand how rapid urban growth affects local and regional weather and, potentially, the global climate is on. NASA scientists will measure thermal radiation from growing cities by flying an instrument-laden Lear jet over Baton Rouge, Sacramento, and Salt Lake City.
April 28, 1998
Building lunar and Martian bases from local on-site materials