WEBVTT FILE 1 00:00:00.000 --> 00:00:07.643 NASA is celebrating the Hubble Space  Telescope’s 34th birthday with this   2 00:00:07.643 --> 00:00:10.758 elegant image of the Little Dumbbell Nebula, 3 00:00:10.758 --> 00:00:15.843 also known as Messier 76, or just M76 for short. 4 00:00:15.843 --> 00:00:21.280 This planetary nebula, an expanding shell  of gas around an aging star, 5 00:00:21.280 --> 00:00:25.596 was created when a dying star cast off  its outer layers. 6 00:00:25.596 --> 00:00:28.642 It’s located 3,400 light-years away 7 00:00:28.642 --> 00:00:31.580 in the constellation Perseus. 8 00:00:31.580 --> 00:00:35.440 M76 is composed of a ring, seen edge-on as the 9 00:00:35.440 --> 00:00:40.317 central bar structure, and two lobes on either  opening of the ring. 10 00:00:40.317 --> 00:00:44.886 Before the star burned out, it ejected the ring of gas and dust. 11 00:00:44.886 --> 00:00:48.560 The ring was likely sculpted by a binary companion star,   12 00:00:48.560 --> 00:00:52.360 which may eventually have been  consumed by the primary star.  13 00:00:52.360 --> 00:00:56.557 The primary star is collapsing to form  a white dwarf. 14 00:00:56.557 --> 00:01:00.566 It is one of the hottest stellar remnants known at a scorching 15 00:01:00.566 --> 00:01:06.916 250.000 degrees Fahrenheit. 24 times our Sun’s surface temperature. 16 00:01:06.916 --> 00:01:12.440 The sizzling white dwarf is visible  as a pinpoint in the center of the nebula.  17 00:01:12.440 --> 00:01:17.920 Pinched off by the disk, two lobes of hot  gas are escaping from the top and bottom   18 00:01:17.920 --> 00:01:23.843 of the “belt,” along the star’s rotation axis  that is perpendicular to the disk. 19 00:01:23.843 --> 00:01:26.993 These lobes are being propelled by the hurricane-like 20 00:01:26.993 --> 00:01:30.280 outflow of material from the dying star, 21 00:01:30.280 --> 00:01:34.513 tearing across space at 2 million miles per hour. 22 00:01:34.513 --> 00:01:37.960 This torrential “stellar wind” is plowing into 23 00:01:37.960 --> 00:01:41.406 cooler, slower-moving gas that was ejected at an 24 00:01:41.406 --> 00:01:46.015 earlier stage in the star’s life, when it was a red giant. 25 00:01:46.015 --> 00:01:48.432 Ferocious ultraviolet radiation from 26 00:01:48.432 --> 00:01:52.720 the super-hot star is causing the gasses to glow. 27 00:01:52.720 --> 00:01:56.960 Because Hubble orbits above Earth’s  atmosphere, it can give us these clear   28 00:01:56.960 --> 00:02:00.000 views of the many wonders in our universe. 29 00:02:00.000 --> 00:02:02.534 For 34 years, the Hubble Space Telescope 30 00:02:02.534 --> 00:02:07.157 has changed the way we think of space and our  place in the cosmos. 31 00:02:07.157 --> 00:02:10.724 Hubble has refined our understanding of the age of the universe 32 00:02:10.724 --> 00:02:14.160 and its rate of expansion. Its deep field images   33 00:02:14.160 --> 00:02:19.480 have made it possible for us to see across  billions of light-years, revealing ancient,   34 00:02:19.480 --> 00:02:24.236 adolescent galaxies that we can compare with our  own Milky Way. 35 00:02:24.236 --> 00:02:26.320 Closer to home, Hubble is revealing 36 00:02:26.320 --> 00:02:28.901 vibrant activity in our solar system 37 00:02:28.901 --> 00:02:33.240 and in other star and planetary systems across the galaxy.  38 00:02:33.240 --> 00:02:35.954 Hubble remains in good health and is expected to 39 00:02:35.954 --> 00:02:38.800 continue its exploration of the universe for years 40 00:02:38.800 --> 00:02:42.010 to come, with unique capabilities that complement 41 00:02:42.010 --> 00:02:44.134 other telescopes like Webb. 42 00:02:44.134 --> 00:02:46.312 Five astronaut servicing missions, 43 00:02:46.312 --> 00:02:49.398 along with an expert technical  team on the ground, 44 00:02:49.398 --> 00:02:53.326 have kept the telescope at the peak of its scientific capabilities. 45 00:02:53.326 --> 00:02:56.107 You can find out more about the Hubble Space Telescope   46 00:02:56.107 --> 00:03:12.003 at our website: nasa.gov/hubble  and on social media @NASAHubble. 47 00:03:12.003 --> 00:03:24.228 [ Slow zoom out of image. Bright central core surrounded by two lobes on either end, which are made of light purples and blues blended together. ] 48 00:03:24.228 --> 00:03:33.813 Follow us on social media @NASAHubble