10 MYSTERIOUS Things Astronauts Have Seen In Space | Space Discoveries

 

space for many is a weird and wonderful  thing  the great unknown is something mankind  has always observed and tried to learn  from  in today's article we're going to share  with you 50 facts that will blow your  mind  but before we get stuck in don't forget  to hit the subscribe button and ring the  notification bell  that way you'll never miss one of our  future articles  number 50 the sun weighs about 330  000 times more than earth it's also  about 109 times the diameter of earth  and is so large  the earth could fit inside the sun about  one million three hundred thousand times  over  number 49 spacesuit helmets have a  velcro patch to help  astronauts scratch an itch this is  literally the only purpose for it  number 48 our solar system is 4.57  billion years old well give or take 30  million years or so  number 47 enceladus one of saturn's  smaller moons reflects  90 of the sun's light because enceladus  icy surface reflects sunlight rather  than absorbing it temperatures reach as  low  as 394 degrees fahrenheit  number 46 we always see the same side of  the moon  no matter where we stand on earth this  is because the moon rotates on its axis  at the same rate that it rotates the  earth number 45  uranus was originally called george's  star  the discoverer william herschel honored  king george iii  by naming it after him 44. the milky way  galaxy is 105  700 light years wide it would take a  modern spacecraft  450 million years to travel to the  center of our galaxy  43 footprints left on the moon won't  disappear there as there is no  wind one small step for man that will  last  forever number 42 earth is the only  planet not  named after a god the name earth comes  from both the old english and old  germanic words for ground  41. pluto is smaller than the united  states  in fact it's almost half its size at 2  474 kilometers compared to the us's 4650  kilometers  40. uranus has 27 moons that have been  discovered so far  it has five large moons and 22 smaller  moons  number 39 there are more stars in space  than there are grains of sand in the  entire world  there are 10 times more stars in the  night sky than grains of sand on the  earth with 70 sextillion  stars being visible from earth through a  telescope  38. neptune takes nearly 165  earth years to make one orbit around the  sun  that's equivalent to 60 190 earth days  to orbit the sun just one  time 37. the international space station  is the largest manned object ever sent  into space  at 109 meters long the international  space station is the third brightest  object in the night sky  36 a day on pluto lasts for 153.6  hours this equates to 6 days 9 hours and  36  minutes 35 saturn is the second largest  planet in our solar system  it has a radius of 58 232 kilometers  which is  nine times the size of earth number 34  the earth's rotation is slowing down  as time goes on this means that days  were much shorter in the past  33. outer space is only 62 miles away  although there's no official boundary  for where space begins  it's agreed that it begins 62 miles  above  sea level number 32  the whirlpool galaxy m51 was the first  celestial object  identified as being spiral the grand  spiraling arms of the whirlpool galaxy  are made up of long lanes of stars and  gas  sprinkled with lots of space dust number  31  the international space station circles  earth every 92 minutes  the speed of the space station is  roughly 17 150 miles per hour  number 30 there are approximately 100  000 million stars in our galaxy out of  all the known galaxies the milky way  is the one that contains the most stars  number 29 using the naked eye you can  see  three to seven different galaxies from  earth  you can see our own milky way galaxy the  triangulum galaxy the andromeda galaxy  both magellanic clouds the omega  centauri in the sagittarius dwarf  spheroidal galaxy  28 mercury and venus are the only two  planets in our solar system that have  no moons in total there are 176  confirmed moons that orbit the planets  in our solar system with some of them  being bigger than mercury itself  number 27 if a star passes too close to  a black hole  it can be torn apart a team of  astronomers have observed a star at the  center of our galaxy orbiting a black  hole for the last 20 years  now it's close enough that the star's  energy is being  dragged in number 26  in 2016 scientists detected a radio  signal from a source  5 billion light years away this means  that when the signal started its journey  earth didn't even exist number 25  buzz lightyear from the toy story  franchise has actually been to outer  space  a buzz lightyear toy spent 15 months  onboard the international space station  and returned to earth on september 11  2009. number 24  the first ever black hole photographed  is 3 million  times the size of earth the photo was  released in april 2019 and shows a halo  of glowing dust and gas  310 million trillion miles from our  planet  number 23 on venus it snows metal  and rains sulfuric acid the scorched  planet is covered with sulfuric acid  which turns metal into gas  it then changes to liquid in the  atmosphere before cooling and falling as  a solid  22. space is completely silent  this is because there's no air in space  and air is needed to carry the sound  vibrations  21. coca-cola was the first soft drink  ever drank in space number 20  astronauts can grow two inches in height  when in space  this is due to the lack of gravity in  space causing the discs of the vertebrae  to expand  number 19 the hottest planet in our  solar system  is venus most people think that this  would be mercury as it's the closest to  the sun  number 18 the first woman in space was a  russian called valentina  she was launched into space and the  history books on june 16  1963. number 17  the first artificial satellite in space  was called sputnik  it was launched by the soviet union into  low orbit on october 4th  1957 number 16.  the mariner 10 was the first spacecraft  that visited mercury in 1974.  it was launched at nasa's kennedy space  center in 1973  and flew by venus three months later  number fifteen our moon is moving away  from earth at a rate of four centimeters  every single year eventually the moon  will leave the earth's gravitational  pull  this will take roughly a couple of  billion years  number 14 the earth weighs about 81  times more than the moon does  the moon's gravity much like other  planets differs depending on where you  are on its surface  number 13. the first living mammal into  space was a dog named laica  laiiko was a stray mongrel from moscow  that was launched into space on the  soviet spacecraft sputnik 2  on the 3rd of november 1957.  number 12 red dwarf stars that are low  in mass can burn continually for up to  10  trillion years a red dwarf is a small  star that is in the later stages of its  life  the surface temperature can reach up to  7200 degrees  fahrenheit number 11 the day on mercury  is equivalent to 58  earth days this is because mercury  rotates extremely slowly on its axis  number 10 there are 88 recognized star  constellations in our night sky  the 88 constellations cover the earth's  night sky and can be observed from both  the southern and northern hemispheres  number nine the center of a comet is  called a nucleus  what's more the streams of dust that  streak behind the comet are called a  coma  number eight as early as 240 bc  the appearance of halley's comet was  documented in china  after 164 bc there was a continuous  recording of the comet  each time it was visible number seven  halley's comet will pass over earth  again on 26 july  2061. the famous comet was last seen on  the 9th of february 1986  and only orbits the earth every 75 years  number six the word astronaut means star  sailor in its origins it's derived from  the greek words  astron meaning star and nate's which  means sailor  number five there is a planet with a  surface  made up of diamonds 55 can serie e  has a mass eight times bigger than earth  and has a surface made up of graphite  and diamonds number four  pens won't work in space normal pens  work by gravity pulling the ink towards  the pen's nib  number three in 2006 the international  astronomical union reclassified pluto as  a dwarf planet  this is because pluto does not dominate  the things around it by its  gravitational pull  number two on average it takes light  only 1.3  seconds to travel from the moon to earth  the distance between the earth and the  moon is only 384  400 kilometers and finally number one  nasa's crater observation and sensing  satellite found  evidence of water on the earth's moon  while water cannot exist on the moon's  surface under its current conditions  scientists believe water ice could  survive within the cold craters  and that concludes our list of the  ultimate space facts do you have any  other facts that didn't make it on the  list  we'd love to hear them in 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