Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and a half billion years ago.
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Astrogeology: July 2015
Planet Earth is situated in what astronomers call the Goldilocks Zone -- a sweet spot in a solar system where a planet's surface temperature is neither too hot nor too cold.
Calendar
- 21 Jul: NSF/NASA/NCAR press conference: What will scientists learn from the August 21 total solar eclipse?
- 24 Jul: NASA Advisory Council; Human Exploration and Operations Committee Meeting
- 24 Jul: NASA Advisory Council Science Committee Meeting
- 25 Jul: NASA Advisory Council Technology, Innovation and Engineering Committee Meeting
- 25 Jul: NASA Advisory Council Ad Hoc Task Force on STEM Education Meeting
- 25 Jul: NASA Advisory Council Institutional Committee Meeting
- 25 Jul: NASA Advisory Council Aeronautics Committee Meeting
- 27 Jul: NASA Advisory Council Meeting
- 28 Jul: 5th IAA Interstellar and Circumstellar Medium workshop
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