Latest John H. Hoffman Stories

2010-10-15 06:40:00

Instruments designed by a UT Dallas professor to measure atmospheric components on the surface of Mars have uncovered important clues about the planet's atmosphere and climate history. The findings, published in a recent issue of the journal Science, reveal how carbon dioxide isotopes have reacted to volcanic activity, water and weathering "“ thus forming a more complete picture of the current Martian atmosphere. The NASA mission in which this work was accomplished was the Phoenix...

2010-09-09 13:55:00

By Daniel Stolte, University Communications, and NASA's Jet Propulsion Laboratory An instrument designed and built at the University of Arizona measured the isotopic composition of the Mars atmosphere, providing information about water on the planet Liquid water has interacted with the Martian surface throughout Mars' history, measurements by NASA's Phoenix Mars Lander suggest. The findings, published in the Sept. 10 issue of the journal Science, also suggest that liquid water has primarily...

Word of the Day
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'