Japan's Akatsuki to Reach Venus Today

By Nancy Atkinson - December 6, 2010 at 12:05 PM UTC | Missions
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Japan's Akatsuki spacecraft will arrive at Venus later today, and will enter orbit around the planet. The box-shaped orbiter will make observations from an elliptical orbit, from a distance of between 300 and 80,000 kilometers (186 to 49,600 miles), looking for — among other things — signs of lightning and active volcanoes.

The Akatsuki probe (Japanese for "Dawn") has been traveling for six months, and launched along with the IKAROS solar sail mission. The timing for the orbit insertion burn is Dec. 6 at about 6:50 p.m. EST (2350 GMT), which is early Tuesday morning Japan Standard Time.

You can see more information

at this Japanese website,

or Emily Lakdawalla at the Planetary Society at

translated the timing of events in English.

There's also an

English-version website that is providing some updates.

Twitters can follow Akatsuki. (in Japanese -- Google translate works well on the spacecraft's Twitter homepage.)

This is Japan's first mission to Venus. The Japanese Space Agency, JAXA, hopes the spacecraft will work for two years studying Venus's clouds and weather in order to gain a better understanding of how the planet's atmosphere evolves over time.

Nancy Atkinson

Nancy Atkinson

Nancy Atkinson is a space journalist and author with a passion for telling the stories of people involved in space exploration and astronomy. She is currently retired from daily writing, but worked at Universe Today for 20 years as a writer and editor. She also contributed articles to The Planetary Society, Ad Astra (National Space Society), New Scientist and many other online outlets.

Her 2019 book, "Eight Years to the Moon: The History of the Apollo Missions,” shares the untold stories of engineers and scientists who worked behind the scenes to make the Apollo program so successful, despite the daunting odds against it. Her first book “Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos” (2016) tells the stories of 37 scientists and engineers that work on several current NASA robotic missions to explore the solar system and beyond.

Nancy is also a NASA/JPL Solar System Ambassador, and through this program, she has the opportunity to share her passion of space and astronomy with children and adults through presentations and programs. Nancy's personal website is nancyatkinson.com