Upcoming 19. Oktober 2025 Starlink 11-19 19. Oktober 2025 Starlink Already started 09. Oktober 2025 Kuiper 07. Oktober 2025 https://www.esa.int/Space_Safety/Hera https://www.blueorigin.com/blue-moon/mark-1 06. Oktober 2025 Starlink 10-59 03. Oktober 2025 Starlink 11-39 25. September 2025 Starlink Kuiper 24. September 2025 IMAP auf einer Falcon 9 15.September 2025 00:02 – 00:22 Germany Time NG-23 MISSION https://www.spacex.com/launches/ng23 13. September…
A little sneak peak into the exposition at https://www.raumfahrtmuseum.de/
Motivation Over the years I gathered some nice books about space exploration, rocketry and space in general. The List To Space and Back Endurance: My Year in Space, A Lifetime of Discovery Von Braun: Dreamer of Space, Engineer of War Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future Flying to the Moon:…
tl;dr; The Karman line defines the edge of space. It is set to 100km above the Earth’s mean sea level and separates aeronautics from astronautics. So to be an astronaut you have to travel higher than 100km from Earth’s surface. Why is that? To fly with a conventional airplane you need the air to generate…
LEO stands for Low Earth Orbit. It ranges from 200km to 2000 km. The ISS orbits the earth between 370km and 460 km. Due to atmospheric drag the orbit decreases over time The Hubble Telescope orbits a bit higher at 545km to 549km Other orbits Overview Satellite Orbit ISS 400km Hubble 545km Starlink 550km Iridium…
1901 Annie Jump Cannon constructed this classification: Class Temperature in K Color O >= 30000 blue B 10000 – 30000 blue white A 7500 -10000 white F 6000 – 7500 yellow white G 5200 – 6000 yellow K 3700 – 5200 light orange M 2400 – 3700 orange red Mnemoic: Oh, Be A Fine Galaxy,…
tl;dr; Length, time and Length measured in meters (1m), symbol L Time measured in seconds (1s), symbol T Mass measured in kilograms (1kg), symbol M Derived quntities e.g. [Speed] = [L] / [T]
Beta decay is the process where a nucleon decays into either an electron or a positron. β− decay (electron emission) n → p + e− + ν A neutron decays into proton, an electron and an anti-neutrino. β+ decay (positron emission) p → n + e++ νe A proton decays into a neutron, a positron…