There were not one, but two asteroid encounters this weekend
As the United States of America celebrated its 250th birthday on terra firma with fireworks displays this weekend, two Asian countries made some splashes of their own farther from Earth. On Sunday, an aging Japanese spacecraft named Hayabusa2, which completed its initial sample-return objective more than half a decade ago, found success with an extended mission that saw the vehicle fly by a peanut-shaped asteroid named Torifune. Hours later, the Chinese space agency released images from a spacecraft, Tianwen-2, arriving at its target asteroid following a journey of 1 billion km. At this small asteroid, the Chinese spacecraft will attempt to retrieve samples and return them to Earth late next year. Read full article Comments
As the United States of America celebrated its 250th birthday on terra firma with fireworks displays this weekend, two Asian countries made some splashes of their own farther from Earth.
On Sunday, an aging Japanese spacecraft named Hayabusa2, which completed its initial sample-return objective more than half a decade ago, found success with an extended mission that saw the vehicle fly by a peanut-shaped asteroid named Torifune.
The Torifune asteroid turns out to be shaped like a peanut.
The Japanese space agency’s Hayabusa2 mission launched back in December 2014 and made a rendezvous with a near-Earth asteroid named 162173 Ryugu in June 2018. After gathering samples, the spacecraft burned its ion propulsion engines to return to Earth, and during a flyby in late 2020 it released a small return capsule. Scientists recovered 5.4 grams of asteroid material from the capsule.
By this point, however, Hayabusa2’s efficient propulsion system still had nearly half of its xenon propellant remaining—approximately 30 kg of the 66 kg it began its mission with.
