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Articles
A Brief History of the Telescope
For thousands of years, humans gazed at the sky without understanding what lay behind the points of light above them. The invention of the telescope opened a window for humanity to distant worlds. But whom do we have to thank for the device that can transform a tiny speck in the night sky into a breathtaking image of Saturn?
15 minutes 
The Sun’s Internal Clock – Exploring Solar Cycles
Even if the Sun always looks the same to us, sunspots—whose sizes vary—were already identified back in the 18th century. The effort to understand what causes these changes led to a fascinating journey into the Sun’s activity cycles and the influence of the planets on it.
