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Voyager 1 is expected to reach the theorized Oort cloud in about 300 years [118] [119] and take about 30,000 years to pass through it. [ 72 ] [ 83 ] Though it is not heading towards any particular star, in about 40,000 years, it will pass within 1.6 light-years (0.49 parsecs ) of the star Gliese 445 , which is at present in the constellation ...
[1] [13] The batteries were designed for a minimum of 40 hours but lasted for 62. [13] Luna 1 became the first artificial object to reach the escape velocity of the Earth, [14] along with its carrier rocket's 1,472-kilogram (3,245 lb) [2] upper stage, which it separated from after being the first spacecraft to reach heliocentric orbit. [1]
Voyager 1 was launched after Voyager 2, but along a shorter and faster trajectory that was designed to provide an optimal flyby of Saturn's moon Titan, [21] which was known to be quite large and to possess a dense atmosphere. This encounter sent Voyager 1 out of the plane of the ecliptic, ending its planetary science mission. [22]
Venus lander (contact lost) – First spacecraft to reach another planet's atmosphere and surface, First Venus impact [70] [18] Luna 8: 3 December 1965
Voyager 1 is the farthest spacecraft from the Sun, more than 152 AU (22.7 billion km; 14.1 billion mi) away when New Horizons reached its landmark in 2021. [159] The support team continued to use the spacecraft in 2021 to study the heliospheric environment (plasma, dust and gas) and to study other Kuiper Belt objects. [219]
It was the twelfth spacecraft to reach Venus and the eighth to return data from the planet, [63] as well as the first mission to succeed in broadcasting images of Venus back to Earth. [64] Mariner 10 built upon observations made by Mariner 5 six years earlier; importantly, Mariner 10 had a camera whereas the prior mission lacked one. [ 65 ]
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The probe entered the interstellar medium on November 5, 2018, at a distance of 119.7 AU (11.1 billion mi; 17.9 billion km) from the Sun [5] and moving at a velocity of 15.341 km/s (34,320 mph) [4] relative to the Sun. Voyager 2 has left the Sun's heliosphere and is traveling through the interstellar medium, though still inside the Solar System ...