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Intro Astronomy Class 6: Mars (continued) and Asteroids

Posted by Bruce Betts on 2014/03/14 06:10 CDT

Continue exploring Mars and learn about asteroids in this video of class 6 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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My ever-popular asteroids-and-comets montage, now in color, with bonus Toutatis

Posted by Emily Lakdawalla on 2012/12/18 04:26 CST | 9 comments

My collage of all the asteroids and comets visited by spacecraft is probably the single most popular image I have ever posted on this blog. I've now updated it to be in color and to include Toutatis.

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Reading Itokawa's life history from microscopic samples

Posted by Emily Lakdawalla on 2011/09/20 01:58 CDT

When Hayabusa's sample return capsule was first opened and found to be very clean-looking inside, I doubted that there could be enough material for laboratory analysis. JAXA announced later that they scraped about 1500 dust grains from the inside with a teflon spatula, and these likely came from Itokawa.

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LPSC 2011: Analysis of the grains returned by Hayabusa

Posted by Emily Lakdawalla on 2011/03/16 12:39 CDT

I'd been despairing of finding a good source for a writeup of the presentations in the Hayabusa session at last week's Lunar and Planetary Science Conference, but am happy to report that I've finally found an excellent one.

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A brush painting for Hayabusa

Posted by Emily Lakdawalla on 2010/07/07 03:16 CDT

Upon James Aldridge's return from Japan, he posted several albums worth of amazing photos, including several of their calligraphy instructor, well-known artist Aiko Tanaka, creating a gestural brush painting to commemorate Hayabusa's return.

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Hayabusa's return: a review

Posted by Emily Lakdawalla on 2010/06/13 04:47 CDT

Hayabusa's return: round up some of the amazing photos, movies, and artworks that were posted and shared and Tweeted and re-Tweeted over the previous dozen hours or so.

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Welcome home, Hayabusa!

Posted by Emily Lakdawalla on 2010/06/13 09:18 CDT

At 13:51 UTC, the Hayabusa spacecraft -- having traveled to an asteroid and back, surviving countless challenges-- broke up into a fiery meteor over the midnight, midwinter Australian sky.

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Preparing for Hayabusa's return

Posted by Emily Lakdawalla on 2010/06/11 06:10 CDT

Only about 40 hours remain for the Hayabusa mission. Its dramatic entry will take place at 14:00 UTC on Sunday, June 13.

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Hayabusa: Waiting

Posted by Emily Lakdawalla on 2010/06/10 09:08 CDT

We're in the final days of the Hayabusa mission, but until Sunday I think we're in a state of "no news is good news."

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A brief history of Hayabusa

Posted by Emily Lakdawalla on 2010/06/08 09:17 CDT

For those of you who found my Hayabusa mission recap too long, here's a graphical version of the history of the Hayabusa mission.

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Sighting the homeworld

Posted by Emily Lakdawalla on 2010/05/17 11:40 CDT

Coming closer every day, Mr. Hayabusa has sighted his final destination: his homeworld, Earth, and its attendant Moon.

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Anticipating the end of Hayabusa

Posted by Emily Lakdawalla on 2010/04/23 02:08 CDT

A successful sample return for the Hayabusa mission will mean the fiery death of Mr. Hayabusa himself. The poignancy of this is not lost upon the people in Japan who are following the mission.

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Hayabusa's coming home

Posted by Emily Lakdawalla on 2010/04/21 10:12 CDT

It really looks like Hayabusa is going to make it home. Hayabusa's sample return capsule will be returning to Earth on June 13, 2010, landing in the Woomera Prohibited Area, Australia at about 14:00 UTC.

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What's up in the solar system in January 2010

Posted by Emily Lakdawalla on 2010/01/04 01:29 CST

While we don't have Moon bases, we do have plenty of spacecraft. Before I get into my more detailed look at the activities of the 20-odd spacecraft wandering about the solar system, I thought I'd look ahead to 2010 more generally and see what the year has in store for us.

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Hayabusa on the home stretch

Posted by Emily Lakdawalla on 2009/12/17 07:49 CST

Hayabusa is still 100 million kilometers from the Earth, less than an astronomical unit away but still with months to travel. But according to an update posted to their websitethis morning by project manager Junichiro Kawaguchi, Hayabusa is on the home stretch.

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Hayabusa's still coming home: JAXA engineers come up with yet another creative solution

Posted by Emily Lakdawalla on 2009/11/19 11:16 CST

Trouble has come time and again to JAXA's little Hayabusa asteroid sample return mission, yet the mission's engineers always come up with new and creative ways to solve problems.

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Hayabusa stumbles on the path back to Earth

Posted by Emily Lakdawalla on 2009/11/11 11:19 CST

JAXA issued a press release (in Japanese) on November 9 stating that one of Hayabusa's ion thrusters, thruster D, had stopped operating. Hayabusa launched with four ion thrusters, but D was one of only two that are still functioning. So the failure of thruster D is a serious problem.

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Exciting Times Ahead: 2010 Will Sizzle, and 2011 Will Really Cook!

Posted by Alan Stern on 2009/05/18 03:56 CDT

Today, I'm kicking the week off with a look at the unusually intense confluence of far flung planetary exploration that's just around the corner, starting the middle of next year.

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There's more to the Hayabusa story

Posted by Emily Lakdawalla on 2009/02/07 06:09 CST

After posting my brief "Hooray for Hayabusa" note on Thursday I got an email from the Japanese blogger "5thstar," telling me that there was more to Hayabusa's story.

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Hooray for Hayabusa!

Posted by Emily Lakdawalla on 2009/02/04 07:18 CST

According to JAXA (the Japanese space agency), poor little Hayabusa has successfully restarted its ion engine and has resumed powered flight today. Hooray! This is good news for Hayabusa's eventual return to Earth.

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