☄️ Interstellar visitor spotted! ☄️
@nasahubble has given astronomers their best look yet at an interstellar visitor — comet 2I/Borisov — whose speed and trajectory indicate it has come from beyond our solar system. In this Oct. 12, 2019 Hubble image, the comet is 260 million miles from Earth. The comet is following a hyperbolic path around the Sun and will exit back into interstellar space.
Comet 2I/Borisov is only the second such interstellar object known to have passed through the solar system. In 2017, the first identified interstellar visitor, an object officially named 'Oumuamua, swung within 24 million miles of the Sun before racing out of the solar system.
As the second known interstellar object found to enter our solar system, the comet provides invaluable clues to the chemical composition, structure and dust characteristics of planetary building blocks presumably forged in an alien star system a long time ago and far away.
Image Credit: Credit: NASA, ESA and D. Jewitt (UCLA) ...
#News : Why does Tycho's Supernova Remnant look so clumpy? #New results show the features likely came from the #explosion itself and not from something that happened in the aftermath. Like #dynamite sticks being set off simultaneously in different locations, the #star 's explosion may have had multiple ignition points! 🧨💥🧨💥🧨💥 More in the comments!
Want this #amazing#space#pic as a new background for your phone or tablet? https://chandra.si.edu/instagram/wallpaper/
Want to know more about this #science#discovery ? https://chandra.si.edu/
Do you have a #3D printer and want to hold a dead star in your hand? #Free#3DPrinting files for Tycho's Supernova Remnant are available on the Chandra website! https://s.si.edu/32pBGN6
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NASA astronaut Christina Koch (right) poses for a portrait with fellow Expedition 61 Flight Engineer Jessica Meir of NASA who is inside a U.S. spacesuit for a fit check. The duo is preparing for their first spacewalk together planned for Oct. 18 to replace a failed power controller on the International Space Station's P6 truss structure. #nasa#astronaut#spacewalk#walk#international#space#station ...