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Heinz Stücke has been cycling around the world since 1962. Arthur Blessitt has been walking around the world carrying a 45 lb (20 kg) wooden cross since 25 December 1969, covering 42,279 miles (68,041 km) through 324 countries. As of 13 June 2008, aged 67, he had walked in every country of the world, since when he has returned to some.
0.5 × 0.3 × 0.2 (350 meters) 1998 Hayabusa: 2005 landed: landed: Landed; returned dust samples to Earth in 2010 - first sample return mission from asteroid; smallest asteroid visited by a spacecraft, first asteroid visited by a non-NASA spacecraft. 2867 Šteins: 4.6: 1969 Rosetta: 2008 800 302 Flyby; first asteroid visited by the ESA. 21 ...
2 July 1913 6 August 1913 A combination of steamers, yachts, and trains [12] Linton Wells, Edward S. Evans: 28 days 14 hours 36 minutes and 5 seconds 1926 1926 A combination of boat, airplane, and trains [13] [14] John Henry Mears: 23 days 15 hours 21 minutes and 3 seconds 1928 1928 [15] Hugo Eckener: 21 days, 5 hours and 31 minutes 8 August 1929
Four years ago, astronomers noticed the abundant clouds on Neptune had largely disappeared. Telescope data may have helped researchers figure out why. Neptune’s clouds have disappeared, and ...
Neptune's rings had been observed from Earth many years prior to Voyager 2 's visit, but the close inspection revealed that the ring systems were full circle and intact, and a total of four rings were counted. [4] Voyager 2 discovered six new small moons orbiting Neptune's equatorial plane, dubbed Naiad, Thalassa, Despina, Galatea, Larissa and ...
Neptune has long been known to have white clouds circling it, but images of the furthest planet in the solar system have shown this changing over time - the most recent image, taken by the Hubble ...
Eugene Cernan and Harrison Schmitt of the Apollo 17 mission stayed for 74 hours 59 minutes and 40 seconds (over 3 days) on the lunar surface after they landed on 11 December 1972. [38] They performed three EVAs (extra-vehicular activity) totaling 22 hours 3 minutes, 57 seconds. As Apollo commanders were the first to leave the LM and the last to ...
An asteroid nearly the size of a football field now has roughly a 0.28% chance of hitting Earth in about eight years, NASA says — though at one point earlier its estimate reached as high as 3.1% ...