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The probe left the heliosphere for interstellar space at 119 AU on November 5, 2018. [4] Voyager 2 is still active. It is not heading toward any particular star, although in roughly 40,000 years it should pass 1.7 light-years from the star Ross 248. [5] Ross 248 and the Sun currently approach each other.
Human presence in outer space began with the first launches of artificial object in the mid 20th century, and has increased to the point where Earth is orbited by a vast number of artificial objects and the far reaches of the Solar System have been visited and explored by a range of space probes.
Humans have left over 187,400 kilograms (413,100 lb) of material on the Moon. Besides the 2019 Chang'e 4 and SLIM missions, the only artificial objects on the Moon that are still in use are the retroreflectors for the Lunar Laser Ranging experiments left there by the Apollo 11 , 14, and 15 astronauts, Chandrayaan-3 lunar lander, and by the ...
It took the crew two days of trekking through the jungle, carrying provisions and gear, to reach Vietnam's enormous Hang Son Doong cave.
The average impact speed of collisions in Low Earth Orbit is 10 km/s with maximums reaching above 14 km/s due to orbital eccentricity. [49] The 2009 satellite collision occurred at a closing speed of 11.7 km/s (26,000 mph), [50] creating over 2,000 large debris fragments. [51] These debris cross many other orbits and increase debris collision risk.
Made a closest approach of 1,950 kilometres (1,210 mi) on 18 September, and circled the Moon before returning to Earth. Landed in the Indian Ocean on 21 September at 16:08 UTC, becoming the first Lunar spacecraft to be recovered successfully and carried the first Earth life to travel to and around the Moon. [64] 63: Zond 6 (7K-L1 No.12L) Zond 6
AS11-40-5952: Lunar Laser Ranging Experiment as left on the Moon by Apollo 11 Plot of arrival time of photons (Y axis) for each of many laser pulses sent to the Moon (X axis). This data, along with similar data from the other landing sites, shows there are man-made objects on the Moon in the locations of the Apollo landings.
Ronni Katz, a former public health official in Portland, Maine, recalled the devastating impact of the state’s two-year lifetime limit on Suboxone. She said Medicaid recipients were cut off at the beginning of 2013 from their prescriptions and many relapsed. “People were suddenly left without their dose,” she said. “They had to do ...