There's been speculation that advanced telescopes may be able to find hallmarks of alien life by looking for oxygen in the spectrum of light reflected off of exoplanets, but this article suggests using the James Web Space Telescope to look for pollution: Pollution on other worlds may show advanced alien life - space - 27 June … Continue reading Find alien civilizations by their pollution?
This is a pretty big milestone. The first Earth sized planet in a star's habitable zone. Pity it's so far away (500 light years) that spectral analysis probably won't be possible to figure out what its atmosphere has in it. The first Earth-sized exoplanet orbiting within the habitable zone of another star has been confirmed … Continue reading First potentially habitable Earth-sized planet confirmed by Gemini and Keck observatories — ScienceDaily