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Method of weighing extraterrestrial planets
The method of weighing these planets not only shows the weight of the planet, but also can reveal how friendly they are to human life.
Finding CO2 on a planet outside the solar system
The Hubble Space Telescope has just discovered CO2 and CO in the atmosphere of a distant planet.
The University of London developed a methane absorption spectrum
As we all know, each different molecule absorbs light in different ways.