14/07/2019
Britain's first spacewalk🇬🇧👨‍🚀 Pictured here is astronaut Tim Peake during the United Kingdom's first ever spacewalk in 2016, taken outside the International Space Station as it hurtled around the Earth (seen reflecting off his visor) at over 17,000mph. Although Major Peake's mission has been over for a while now, the astronaut has already announced that he will be returning to Space for a second mission sometime in the near future🚀
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14/07/2019
This photo is of the beautiful and famous NGC 1499 or as its known; the California Nebula. It's located approximately 1800 light years from Earth in the constellation of gemini, and when viewed in a certain orientation, slightly resembles the outline of the state of California, thus securing the name California Nebula.
The reason this object is glowing at all is because of a process where the brightest star in the photo, Menkhib (Xi Persei) is ionizing the gas and material in the nebula. As a Class-O star, the blue/white Menkhib is one of the hottest stars visible to us in the night sky; its surface temperature is around 66,000 degrees F° or about 37,000 Kelvin. That’s nearly 6 times the temperature of the surface of the Sun. Also, it’s about 40 times the mass of our Sun, giving off 330,000 times the light. If the star replaced the Sun we would have to evacuate Earth to nearly 14 times the distance of Pluto to find a location where we receive the same solar energy as we do from the Sun today. Known as a giant or supergiant, the star is slightly unstable and has likely ceased hydrogen fusion at its core and quite possibly has already begun to fuse helium atoms. Either way, the fuse and primer have been set for detonation in the distant future.
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Image credit : Bob Franke of Focal Pointe Observatory
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12/07/2019
Named for the mythological Greek Moon goddess and twin of Apollo, will carry humanity back to the Moon — this time, for good — before we launch to Mars and to the unexplored beyond. Get the latest updates and more, straight to your inbox: https://go.nasa.gov/32aeGSu
09/05/2019
How to Teleport Schrödinger's Cat
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