Re: Scientists thought Jupiter's moon Europa was ejecting water. Now not so sure
"Jim Wilkins" <[email protected]> Fri, 22 May 2026 12:25:48 -0400
| Newsgroups | alt.astronomy,rec.aviation.military |
|---|---|
| Organization | A noiseless patient Spider |
| Message-ID | <[email protected]> |
"a425couple" wrote in message news:[email protected]... from https://www.space.com/astronomy/solar-system/hubble-telescope-watched-jupiters-moon-europa-for-14-years-and-now-scientists-arent-sure-if-its-ejecting-water-after-all Scientists thought Jupiter's moon Europa was ejecting water. Now they're not so sure ----------------------------- This describes spectroscopy, the non-contact identification of materials by their absorption or emission of light. It's an application of the way airborne water droplets separate sunlight into the colors of the rainbow. https://www2.chemistry.msu.edu/faculty/reusch/virttxtjml/spectrpy/infrared/infrared.htm The instruments that impress me are the Star Trek style long range sensors that identify surface minerals from orbit. https://science.nasa.gov/mission/odyssey/science-instruments/