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Blog Archive

 

Voyager Mission Status Bulletins: Jupiter and Saturn

Posted by Emily Lakdawalla on 2010/09/24 01:27 CDT

Last week I posted a stack of Voyager Mission Status Bulletins, which were once the main resource for space enthusiasts to follow the dramatic events and photos of an in-flight space mission.

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Pretty picture: Europa and Jupiter

Posted by Emily Lakdawalla on 2010/09/21 05:29 CDT

Photos like this always make me think about how unimportant size is in determining whether one of the worlds of the solar system is an exciting place.

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The Voyager Mission Updates

Posted by Emily Lakdawalla on 2010/09/14 01:39 CDT

We take for granted now the ability to get detailed mission updates in a timely fashion via the Web. But How did people get their mission status before the Web?

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Possibly the best view of the Great Red Spot ever

Posted by Björn Jónsson on 2010/09/01 06:40 CDT | 1 comments

This is a new, big mosaic of Voyager 1 images, this time showing the Great Red Spot at high resolution.

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Jupiter's swirling storms from Voyager 1

Posted by Emily Lakdawalla on 2010/08/26 05:28 CDT

Amateur image mage Björn Jónsson has recently turned his attention back to Voyager 1's close-up images of Jupiter.

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The August 20, 2010 Jupiter fireball -- and the March 5, 1979 one

Posted by Emily Lakdawalla on 2010/08/24 11:36 CDT

Following up on the story I first posted on August 22, the Jupiter impact fireball first noticed by Japanese amateur astronomer Masayuki Tachikawa has been independently confirmed by two other Japanese astronomers.

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Yet another Jupiter impact!? August 20, seen from Japan

Posted by Emily Lakdawalla on 2010/08/22 05:03 CDT

This may be a very common event after all: another optical flash has been observed on Jupiter, again from an observer far east of the Greenwich meridian, though it was not Anthony Wesley (for once).

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New Horizons images Jupiter again

Posted by Emily Lakdawalla on 2010/07/27 06:30 CDT

Three years after New Horizons flew past Jupiter on its way to Pluto, the spacecraft has imaged the giant planet again.

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Jupiter's faded belt: It's happened before, and it'll happen again

Posted by Emily Lakdawalla on 2010/06/16 05:07 CDT

When I wrote a post about Jupiter's missing South Equatorial Belt in May, I had three main questions: how long did it take for the belt to go away, has this happened before, and how can a planet as big as Jupiter change its appearance so quickly?

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The June 3 Jupiter Impact: 22 hours later

Posted by Emily Lakdawalla on 2010/06/04 01:14 CDT

Time to take stock of what happened a day ago. The worldwide, round-the-clock nature of planetary science is both exhilarating and challenging!

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Confirmation of the Jupiter impact from Christopher Go

Posted by Emily Lakdawalla on 2010/06/03 07:51 CDT | 1 comments

The impact flash on Jupiter observed earlier today by Anthony Wesley has been confirmed by Philippines-based amateur astronomer Christopher Go.

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A NEW! Impact on Jupiter

Posted by Emily Lakdawalla on 2010/06/03 05:51 CDT

On the same day as a team of astronomers released new Hubble Space Telescope images of last year's Jupiter impact, the original discoverer of the 2009 impact scar, Anthony Wesley, reported on an amateur astronomy forum that he had observed a new impact on Jupiter.

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Jupiter has lost a belt!

Posted by Emily Lakdawalla on 2010/05/10 05:22 CDT

Via Daniel Fischer's Tweet about a blog entry by Astro BobI learned of something which should be obvious to anyone who has trained even a rather small telescope on Jupiter over the past few weeks: one of its iconic stripes is just plain gone.

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Hubble turns 20

Posted by Emily Lakdawalla on 2010/04/23 03:02 CDT

Tomorrow is the 20th anniversary of the launch of the Hubble Space Telescope. It's hard to believe it's been going strong for so many years.

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Where neon falls like rain

Posted by Emily Lakdawalla on 2010/03/22 05:00 CDT

As if Titan's methane rain weren't weird enough, Jupiter's now thought to have helium-neon rain.

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400 Years of the Galilean Satellites

Posted by Emily Lakdawalla on 2010/01/07 03:34 CST

It was 400 years ago today that Galileo discovered smaller planets attending the planet Jupiter.

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Planetary Society Advent Calendar for December 7: Jupiter

Posted by Emily Lakdawalla on 2009/12/07 03:11 CST

Jupiter has been high overhead at sunset for several months, a brilliant light that's easy to spot even when the sky is still bright at dusk; but it's now moving quickly to the west as Earth speeds ahead of Jupiter's more stately march around the Sun.

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Four hundred and fourteen years since Galileo

Posted by Emily Lakdawalla on 2009/12/07 10:43 CST

Galileo, the scientist, discovered the Galilean satellites of Jupiter four hundred years ago next month, while Galileo, the mission, arrived at Jupiter to study those moons in situ fourteen years ago Sunday.

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Two new names in the solar system: Herse and Weywot

Posted by Emily Lakdawalla on 2009/11/12 04:45 CST

Via the USGS I learned that Jupiter has passed a milestone of sorts, and now has fifty named satellites.

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Planetary Radio Q and A: Not-so-gassy giants

Posted by Emily Lakdawalla on 2009/11/04 04:02 CST

On Planetary Radio's "Questions and Answers" I answered this question: "I read that Uranus got its tilt when it was hit by another object. What does it mean for a ball of gas to be hit -- wouldn't another object just pass through it?"

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