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Japanese Spacecraft reaches Venus Five years Late due to Wrong Turn

Five years after an engine misfire, the Akatsuki spacecraft (illustrated) just got a second chance at orbiting the planet Venus.After missing a turn off the interplanetary expressway, a spacecraft has now finished taking the scenic route to Venus. The Japanese Aerospace Exploration Agency Akatsuki probe successfully went into orbit around Earth’s sister planet at 8:51 a.m. December 7 Japan Standard Time — only five years after its first attempt.

Akatsuki has been looping around the sun since 2010, after an engine misfire prevented the spacecraft from slowing down enough to be captured by Venus’ gravity. The probe’s new (unintended) trajectory, however, would bring it close to Venus every five years. With its main engine offline and the planet in sight, Akatsuki relied on small attitude control thrusters to slow it enough during this year’s encounter to stay for an extended visit.

The original plan was to spend two years at Venus, studying the planet’s meteorology and mapping the surface. Now, mission engineers may have to revise that plan. Akatsuki is stuck on a highly elliptical orbit around the planet and it got a little cooked during a journey that brought it closer to the sun than intended.

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