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LCROSS Centaur separation and braking burn successful

Emily Lakdawalla • October 08, 2009

LCROSS and its Centaur upper stage have separated successfully, and the LCROSS shepherd spacecraft has braked in order to follow behind the Centaur when both impact the Moon tomorrow.

LROC nabs image of the Apollo 14 S-IVB impact site

Emily Lakdawalla • October 08, 2009

As a reminder that we've been crashing stuff into the Moon for decades, the Lunar Reconnaissance Orbiter Camera (LROC) team released today a photo of the crater made by the spent upper stage of the Saturn rocket that lofted the Apollo 14 mission to the Moon.

A couple of helpful visualizations of LCROSS impact

Emily Lakdawalla • October 08, 2009

The visualization studio at Goddard Space Flight Center has just posted some handy simulations of what we can expect the LCROSS impact to look like.

LCROSS impact preview

Emily Lakdawalla • October 08, 2009

Way early tomorrow morning, LCROSS and its Centaur upper stage will crash into the lunar south pole.

Apophis is less scary than it used to be

Bruce Betts • October 07, 2009

Based on analyses of previously unstudied telescopic data, NASA scientists have released new predictions for the path of the 300-meter-diameter asteroid Apophis.

MESSENGER is fine

Emily Lakdawalla • October 07, 2009

The caption to today's image release from the MESSENGER team concerns their long-term campaign to study Mercury's brightness through a range of phase angles.

DPS: The amazing wound-up C ring, by Josh Colwell

Emily Lakdawalla • October 07, 2009

DPS: The amazing wound-up C ring, by Josh Colwell

App review: Moon Globe and Mars Globe: Five stars!!

Emily Lakdawalla • October 07, 2009

App review: Moon Globe and Mars Globe: Five stars!!

A podcast, a space carnival, and a New Horizons Planetary Radio Q and A

Emily Lakdawalla • October 07, 2009

A podcast, a space carnival, and a New Horizons Planetary Radio Q and A

Reports from the 2009 arctic Mars analogue Svalbard expedition

Adrienne Kish • October 06, 2009

The expedition's goals were to integrate and test two new instruments for NASA's Mars Science Laboratory rover and four for ESA's ExoMars rover.

Changes in Titan's southern lakes

Emily Lakdawalla • October 06, 2009

Today's science press release out of the Division of Planetary Sciences meeting concerns changes in lakes near Titan's south pole observed during Cassini's mission. In brief, repeat Cassini RADAR observations of the same spots during different Titan flybys turned up places where there appeared to be dark lakes in earlier images and dry lakes in later images.

Mars Science Laboratory Instruments: MARDI

Ryan Anderson • October 06, 2009

Next up in my series of posts about the instruments on MSL is the Mars Descent Imager (MARDI).

The September-October 2009 issue of The Planetary Report is out

Emily Lakdawalla • October 06, 2009

The September-October 2009 issue of The Planetary Report is out

Prizes for Steve Squyres, Toby Owen, Kelly Beatty, and Sarah Stewart-Mukhopadhyay

Emily Lakdawalla • October 06, 2009

Prizes for Steve Squyres, Toby Owen, Kelly Beatty, and Sarah Stewart-Mukhopadhyay

Reports from the 2009 arctic Mars analogue Svalbard expedition

Juan Diego Rodriguez-Blanco • October 06, 2009

The expedition's goals were to integrate and test two new instruments for NASA's Mars Science Laboratory rover and four for ESA's ExoMars rover.

2008 TC3: One year later (a 365 Days of Astronomy podcast)

Emily Lakdawalla • October 05, 2009

2008 TC3: One year later (a 365 Days of Astronomy podcast)

Another possible piece of evidence for a Rhea ring

Emily Lakdawalla • October 05, 2009

Another possible piece of evidence for a Rhea ring

Massive MESSENGER Mercury Mosaic

Emily Lakdawalla • October 05, 2009

Massive MESSENGER Mercury Mosaic

MESSENGER gets two planets for the price of one

Emily Lakdawalla • October 02, 2009

Here's a pretty shot of Mercury taken by MESSENGER on approach...but wait, what's that tiny little speck in the lower left corner of the photo?

It would appear that Opportunity has stumbled upon another meteorite

Emily Lakdawalla • October 02, 2009

I wonder if this came from the same original body as Block Island, or if Meridiani is the kind of slowly deflating landscape that accumulates meteorites at its surface, like the ANSMET meteorite hunting spots in Antarctica?

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