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Archive for October, 2021

October 27, 2021

New Shepard

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Wikipedia dicit:

New Shepard is a vertical-takeoff, vertical-landing (VTVL), crew-rated suborbital launch vehicle developed by Blue Origin as a commercial system for suborbital space tourism.
The name New Shepard makes reference to the first American astronaut in space, Alan Shepard, one of the original NASA Mercury Seven astronauts, who ascended to space in 1961 on a suborbital trajectory similar to that of New Shepard.

Prototype engine and vehicle flights began in 2006, while full-scale engine development started in the early 2010s and was complete by 2015. Uncrewed flight testing of the complete New Shepard vehicle (propulsion module and space capsule) began in 2015.

On 23 November 2015, after reaching 100.5 km (62.4 mi) altitude (outer space), the suborbital New Shepard booster successfully performed a powered vertical soft landing, the first time a suborbital booster rocket had returned from space to make a successful vertical landing. The test program continued in 2016 and 2017 with four additional test flights made with the same vehicle (NS-2) in 2016 and the first test flight of the new NS-3 vehicle made in 2017.

Blue Origin planned its first crewed test flight to occur in 2019, which was however delayed until 2021, and has since announced that tickets would begin to be sold for commercial flights of up to six people. The first crewed flight took place on 20 July 2021. An anonymous buyer purchased one seat for the 20 July 2021 flight at auction for $28 million but this person did not fly on said flight due to scheduling problems; the anonymous buyer was rescheduled for a later flight. Instead of the auction winning passenger, 18-year-old Oliver Daemen was selected to fly. Daemen’s father paid for his flight, thus Daemen was the first customer (i.e. person whose flight has been paid for) passenger of New Shepard, and became the youngest person and first teenager to fly into space. As of October 13th, 2021, New Shepard has flown 8 passengers into space.

Video credit: Blue Origin

 

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October 25, 2021

Lucy Launch

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Wikipedia dicit:

Lucy was launched from Cape Canaveral SLC-41 on 16 October 2021, at 09:34:00.192 UTC on the 401 variant of a United Launch Alliance Atlas V launch vehicle, after which it will gain two gravity assists from Earth; one in 2022, and one in 2024. In 2025, it will fly by the inner main-belt asteroid 52246 Donaldjohanson, which was named after the discoverer of the Lucy hominin fossil. In 2027, it will arrive at the L4 Trojan cloud (the Greek camp of asteroids that orbits about 60° ahead of Jupiter), where it will fly by four Trojans, 3548 Eurybates (with its satellite), 15094 Polymele, 11351 Leucus, and 21900 Orus. After these flybys, Lucy will return to Earth in 2031 for another gravity assist toward the L5 Trojan cloud (the Trojan camp which trails about 60° behind Jupiter), where it will visit the binary Trojan 617 Patroclus with its satellite Menoetius in 2033. The mission may end with the Patroclus–Menoetius flyby, but at that point Lucy will be in a stable, 6-year orbit between the L4 and L5 clouds, and a mission extension will be possible.

Three instruments comprise the payload: a high-resolution visible imager, an optical and near-infrared imaging spectrometer, and a thermal infrared spectrometer. Harold F. Levison of the Southwest Research Institute in Boulder, Colorado is the principal investigator, with Cathy Olkin of Southwest Research Institute as the mission’s deputy principal investigator. NASA’s Goddard Space Flight Center will manage the project.

Exploration of Jupiter Trojans is one of the high-priority goals outlined in the Planetary Science Decadal Survey. Jupiter Trojans have been observed by ground-based telescopes and the Wide-field Infrared Survey Explorer to be “dark with… surfaces that reflect little sunlight”. Jupiter is 5.2 AU (780×106 km; 480×106 mi) from the Sun, or about five times the Earth-Sun distance. The Jupiter Trojans are at a similar distance but can be somewhat farther or closer to the Sun depending on where they are in their orbits. There may be as many Trojans as there are asteroids in the asteroid belt.

Video credit: NASA

 

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October 13, 2021

Launching Lucy

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NASA dicit:

On October 16, 2021, our Lucy spacecraft will begin its journey to visit a record-breaking number of asteroids. The 12-year mission starts from NASA’s Kennedy Space Center where it’ll launch aboard a United Launch Alliance Atlas V 401 rocket. From there, Lucy will be the first spacecraft to visit a record number of destinations in independent orbits around the sun – one main belt asteroid and seven of Jupiter’s Trojan Asteroids.

Like the mission’s namesake – the fossilized human ancestor, “Lucy,” whose skeleton provided unique insight into humanity’s evolution – Lucy will revolutionize our knowledge of planetary origins and the formation of the solar system. Lucy’s first launch attempt in its 21-day launch window is scheduled for 5:34 a.m. EDT on October 16.

Video credit: NASA

 

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October 12, 2021

Lucy Overview

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Wikipedia dicit:

Lucy is a planned NASA space probe that will complete a 12-year journey to eight different asteroids, visiting a main belt asteroid as well as seven Jupiter trojans, asteroids which share Jupiter’s orbit around the Sun, orbiting either ahead of or behind the planet. All target encounters will be fly-by encounters. The Lucy spacecraft is the centerpiece of a US$981 million mission.

On 4 January 2017, Lucy was chosen, along with the Psyche mission, as NASA’s Discovery Program missions 13 and 14 respectively. The mission is named after the Lucy hominid skeleton, because the study of Trojans could reveal the “fossils of planet formation”: materials that clumped together in the early history of the Solar System to form planets and other bodies. The Australopithecus itself was named after the 1967 Beatles song “Lucy in the Sky with Diamonds”.

Lucy is planned to launch in October 2021 on the 401 variant of a United Launch Alliance Atlas V launch vehicle, after which it will gain two gravity assists from Earth; one in 2022, and one in 2024. In 2025, it will fly by the inner main-belt asteroid 52246 Donaldjohanson, which was named after the discoverer of the Lucy hominid fossil. In 2027, it will arrive at the L4 Trojan cloud (the Greek camp of asteroids that orbits about 60° ahead of Jupiter), where it will fly by four Trojans, 3548 Eurybates (with its satellite), 15094 Polymele, 11351 Leucus, and 21900 Orus. After these flybys, Lucy will return to Earth in 2031 whereupon it will receive another slight gravity assist to take it to the L5 Trojan cloud (the Trojan camp which trails about 60° behind Jupiter), where it will visit the binary Trojan 617 Patroclus with its satellite Menoetius in 2033. The mission may end with the Patroclus–Menoetius flyby, but at that point Lucy will be in a stable, 6-year orbit between the L4 and L5 clouds, and a mission extension will be possible.

Three instruments comprise the payload: a high-resolution visible imager, an optical and near-infrared imaging spectrometer and a thermal infrared spectrometer.

Exploration of Jupiter Trojans is one of the high priority goals outlined in the Planetary Science Decadal Survey. Jupiter Trojans have been observed by ground-based telescopes and the Wide-field Infrared Survey Explorer to be “dark with… surfaces that reflect little sunlight”. Jupiter is 5.2 AU (780×106 km; 480×106 mi) from the Sun, or about five times the Earth-Sun distance. The Jupiter Trojans are at a similar distance but can be somewhat farther or closer to the Sun depending on where they are in their orbits. There may be as many Trojans as there are asteroids in the asteroid belt.

Video credit: NASA Goddard

 

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