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Yeah!!! The way in which we detect them is so incredible: either by noticing the periodic slight decrease in light as the exoplanet orbits its star, or by noti
by amha 10y ago
Yeah!!!
The way in which we detect them is so incredible: either by noticing the periodic slight decrease in light as the exoplanet orbits its star, or by noticing the periodic slight wobble of the star around it and its expolanet's joint center of mass. When you think of what a tiny difference we're measuring, of something so dim and so far away, and the fact that we're able to actually resolve those things––it's just staggering.
- DanBC 10y agoImagine there's an alien civilisation (very similar to our levels of tech) on that exoplanet, looking back at us. Would they be able to detect Earth? How about Jupiter?
- semaphoreP 10y agoIf they have a 10 meter telescope in space, they may very well have the technology to see Earth.