Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Blogs

Blog Archive

 

Vesta looks pretty battered

Posted by Emily Lakdawalla on 2011/06/23 01:53 CDT

There was a press briefing on Dawn today at NASA Headquarters, and there are new pictures! Here's what Vesta looked like as of three days ago, when Dawn was only 189,000 kilometers away.

Read More »

Vesta, now better than Hubble!

Posted by Emily Lakdawalla on 2011/06/17 07:55 CDT

Closer and closer! Vesta is still fuzzy, but as Dawn inexorably draws closer it's beginning to come into focus. The view is now better than anything Hubble has ever returned to Earth.

Read More »

A Vesta rotation movie from Dawn!!

Posted by Emily Lakdawalla on 2011/06/13 04:33 CDT

What do you know! I spend my last pre-vacation post whining about the lack of image releases from Dawn as it approaches Vesta and what do I find in my Inbox on the morning of my return to work but: an image release from Dawn!

Read More »

Dawn Journal: Vesta to choose Dawn's arrival time

Posted by Marc Rayman on 2011/05/30 12:52 CDT

Dawn remains healthy and on course as it continues to approach Vesta. Thrusting with its ion propulsion system, as it has for most of its interplanetary journey so far, the spacecraft is gradually matching its solar orbit to that of the protoplanet just ahead.

Read More »

Land ho!

Posted by Emily Lakdawalla on 2011/05/11 12:23 CDT

It's hard to convey just how excited I am to see Dawn's first image of asteroid Vesta.

Read More »

Dawn's Vesta phase timeline, a summary

Posted by Emily Lakdawalla on 2011/05/03 01:18 CDT

Now that Dawn has finally begun its science mission at Vesta, I thought it'd be useful to go back through Marc Rayman's Dawn Journals to collect a summary of the plans for Vesta.

Read More »

So far, no moons found at Ceres or Vesta

Posted by Emily Lakdawalla on 2011/04/15 02:37 CDT

Since the Galileo mission discovered tiny Dactyl circling Ida in 1993, quite a lot of asteroid systems have been found to be binary; there are even a few triples. So it's quite reasonable to guess that two of the biggest asteroids, Ceres and Vesta, might also have satellites.

Read More »

Dawn's instruments are being roused for Vesta approach

Posted by Emily Lakdawalla on 2011/03/21 05:00 CDT

Today the Dawn imaging team released a photo from the main camera, the Framing Camera, symbolizing that they're preparing to start Dawn approach science; the other two science instruments, a spectrometer and a neutron detector, are also being turned on and checked out.

Read More »

Dawn Journal: HAMO2; the destination glows bright

Posted by Marc Rayman on 2011/03/09 01:06 CST

Deep in the asteroid belt, Dawn continues thrusting with its ion propulsion system. The spacecraft is making excellent progress in reshaping its orbit around the sun to match that of its destination, the unexplored world Vesta, with arrival now less than five months away.

Read More »

How much is Vesta's geology controlled by its one huge impact feature?

Posted by Emily Lakdawalla on 2011/02/07 02:09 CST

Here's a neat paper just published in Geophysical Research Letters: "Mega-ejecta on asteroid Vesta." In it, Martin Jutzi and Erik Asphaug consider Vesta's shape -- which appears to be dominated by a very large impact crater centered at its south pole -- and ask how much of the great big asteroid Vesta's global appearance is likely to be dominated by the effects of that one large impact.

Read More »

Dawn Journal: ORT ORT ORT

Posted by Marc Rayman on 2011/02/03 12:10 CST

Dawn continues its flight through the asteroid belt, steadily heading toward its July rendezvous with Vesta, where it will take up residence for a year. On January 10, Dawn performed some of the activities that it will execute in its low altitude mapping orbit (LAMO) at Vesta.

Read More »

Happy 2011, and an end to the 2010 advent calendar

Posted by Emily Lakdawalla on 2011/01/01 11:43 CST

Welcome 2011! I can't wait for what this year has in store. The prize for all of you who have enjoyed opening each door in the Planetary Society's 2010 advent calendar is one of the best views we can get of one of the biggest objects in the asteroid belt, Vesta.

Read More »

365 Days of Astronomy Podcast: Small Worlds

Posted by Emily Lakdawalla on 2010/12/27 03:56 CST

Today the 365 Days of Astronomy podcast aired my contribution, Small Worlds, about the smaller denizens of the solar system visited in the past year, and due to be visited in the next.

Read More »

How does Lutetia compare to the other asteroids and comets visited by spacecraft?

Posted by Emily Lakdawalla on 2010/07/15 04:33 CDT

Almost a week after Rosetta flew past Lutetia, the asteroid is now a distant pinprick of light to the spacecraft, and the science team is getting down to the business of analyzing their data.

Read More »

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.

Read More »

LPSC: Wrapping up Tuesday: The Moon, Mars, Mercury, Vesta, and back to Mars

Posted by Emily Lakdawalla on 2010/03/12 01:27 CST

Well, it's already mid-day on the Friday a week after the Lunar and Planetary Science Conference ended and I'm STILL not done writing up my notes.

Read More »

Items 61 - 76 of 76  Previous1234
Facebook Twitter Email RSS AddThis

JOIN THE
PLANETARY SOCIETY

Beyond The Horizon, There's More To Explore!

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Us

Featured Images

Rosetta impact
Mawrth Vallis, Mars
Exploration Mission 1 Orion flight spacecraft
Neptune from Voyager 2
More Images

Featured Video

The Planetary Post - Star Trek 50th Anniversary

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join The Planetary Society

Let’s explore the cosmos together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!