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Asteroid Bennu is a potentially dangerous near-Earth asteroid that was studied by NASA’s OSIRIS- REx charge from 2018 to 2021. Here is the Recent news about Most dangerous’ asteroid in solar system.
The purpose, which involved a dramatic sample collection, made Bennu one of the three best-explored asteroids in the entire macrocosm. The OSIRIS- REx charge revealed multiple surprising data about Bennu, including that its face is so soft that it nearly swallowed up the inquiry during the slice touchdown.
Despite the fairly high chances of Bennu’s route cutting with that of Earth in the coming couple of centuries, utmost experts suppose the asteroid is rather inoffensive.
Officially designated 101955 Bennu, the space gemstone was named as a destination of NASA’s first ever asteroid sample collection charge, the Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer( OSIRIS- REx) charge, in 2008. Bennu stood out among 7,000 near-Earth asteroids known at that time, according to the University of Arizona, which manages the charge for NASA.
Near-Earth asteroids are space jewels that circumvent the sun at distances analogous to that of Earth. When designing the OSIRIS- REx charge, masterminds were looking specifically for a gemstone traveling between 0.8 and 1.6 Astronomical Units( AU), or sun-Earth distances, from the sun. In addition to the right route, scientists also demanded a gemstone that wouldn’t spin too presto to allow for safe sample collection. That meant the asteroid demanded to be wider than 656 bases( 200 measures). also, scientists were interested in visiting a special type of asteroid, a carbon-rich type that hasn’t changed much since the early days of the solar system.
The OSIRIS- REx charge set out for a two-time voyage to Bennu in September 2016 and entered into route around the spinning-top-shaped gemstone, in December 2018.
The spacecraft spent nearly two times ever studying Bennu before making a successful, although rather dramatic, sample collection attempt in October 2020. During the slice operation, OSIRIS-REx managed to collect 2 ounces( 60 grams) of regolith from Bennu’s face, but the asteroid’s response to the touchdown took the charge platoon by surprise. Bennu, a conglomeration of dirt, clay, and pebbles held together by only veritably weak gravitational forces nearly swallowed up OSIRIS-REx like a swamp, ejecting a wall of debris into space that hovered the spacecraft’s safety.
OSIRIS- Rex left Bennu in May 2021 and is anticipated to drop off the precious sample at Earth in September 2023, before heading off for its extended charge to asteroid Apophis. Bennu was discovered in 1999 by the Lincoln Near-Earth Asteroid Research( LINEAR) telescope at the White Beach Missile Range in New Mexico.
Known under indispensable designations as 1999 RQ36 or Asteroid 101955, Bennu entered its name from a” Name That Asteroid” competition held by the University of Arizona in 2013.
Nine-time-old schoolboy Mike Puzio proposed the winning name, saying that the shape of the spacecraft designed to visit the asteroid, sporting an outstretched sample arm, looked like the heron god Bennu known from ancient Egyptian tradition. The fabulous raspberry is constantly associated with Osiris, the god of revitalization, fertility, but also death, which the scientists set up emblematic of the double part of asteroids in the macrocosm occasionally they act as life destructors( similar to the case of the Chicxulub asteroid that caused the extermination of dinosaurs) but some of these jewels are also believed to have brought the structure blocks of life to Earth billions of times agone. Bennu is 1,614 bases( 492 m) wide and has a fairly regular shape that looks a bit like a spinning top.
The asteroid completes one route around the sun every 435 Earth days and every six times makes a close approach to Earth, passing about 186,000 long hauls( 300,000 km) from the Earth’s face, which is near the route of the moon. One day on Bennu lasts 4.3 Earth hours, meaning the asteroid spins on its axis, completing one gyration in that period.
A special kind of carbon-rich asteroid, Bennu is believed to contain organic composites as old as the solar system itself, which, scientists hope, will help exfoliate some light on the origins of life on our earth. similar asteroids generally live in the external rung of the asteroid belt between the routeways of Mars and Jupiter, but occasionally resettle closer to the sun, which is exactly what happened to Bennu in history.
The reason for Bennu’s migration into Earth’s neighborhood was the so-called Yarkovsky effect, a drive generated by the sun when the surprisingly dark carbon-rich asteroid absorbs its energy. Scientists suppose Bennu left the main asteroid belt after it broke off from a much larger body, up to 130 long hauls( 200 km) wide, in a collision with another space gemstone. This collision may have happened between 700 million and 2 billion times agone. The parent body, as old as the solar system itself, was also rather unchanged, featuring chemistry and mineralogy typical for the foremost stages of the solar system’s elaboration.
The first inquiry ever to collect a sample from an asteroid was Japan’s Hayabusa 1, which visited a space gemstone called Itokawa in 2005. The charge’s success urged a follow-up, the Hayabusa 2 charge, which studied asteroid Ryugu in 2018 and 2019. Both Hayabusas successfully delivered asteroid samples back home. Indeed before the Hayabusa operations, NASA’s NEAR Shoemaker inquiry ringed and considerably mugged the face of asteroid EROS in 2000. That inquiry ended its life by landing on EROS’ face in 2001. There are plenitude of coffers about this fascinating space gemstone on the internet. You can start by exploring the charge’s runner run concertedly by NASA, the University of Arizona, and Lockheed Martin.