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Dawn Journal: Faraway Viewing Through the Mind's Eye

Posted by Marc Rayman on 2013/01/02 04:38 CST

As Dawn treks onward to Ceres, its path will cross within a few degrees of the moon as seen from Earth on Jan. 21–22.

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Dawn Journal: Hydrazine Haste Makes Waste

Posted by Marc Rayman on 2012/12/05 11:02 CST | 1 comments

By saving fuel, Dawn will arrive at Ceres in 2015 with about half of the 45.6-kilogram (101-pound) hydrazine supply it had when it rocketed away from Cape Canaveral.

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Planetary Radio: A Dawn MIssion Update
And a Video Tour of Marc Rayman's Space Collection

Posted by Mat Kaplan on 2012/11/20 12:36 CST

A Planetary Radio status report from the Dawn mission's Marc Rayman, accompanied by a fascinating video tour of Marc's at-home collection of space information and memorabilia.

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Dawn Journal: Scary-Good Ion Propulsion

Posted by Marc Rayman on 2012/10/31 12:34 CDT

Dawn continues to raise its orbit en route to its 2015 date with Ceres. Also, Marc prepares his high-energy Halloween costume.

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Why haven't we found evidence for life starting in asteroids?

Posted by Emily Lakdawalla on 2011/05/10 01:51 CDT

Here's a theoretical paper that asks an interesting question: When the solar system was very young and still very hot, could medium-sized asteroids have been habitable abodes for life?

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The scale of our solar system

Posted by Emily Lakdawalla on 2011/05/02 11:26 CDT

Space.com has taken advantage of the infinitely scrollable nature of Web pages to produce a really cool infographic on the scales of orbital distances in the solar system.

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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.

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LPSC 2011: Day 1: Small bodies

Posted by Emily Lakdawalla on 2011/03/08 12:28 CST

Here are some of the noteworthy items from the morning's session on "Small Bodies: A Traverse from NEOs to TNOs" and the afternoon's session on "Asteroid Geophysics and Processes: Surfaces and Interiors."

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