Remembering Philip Morrison, this week on planetary radio.

Hi everyone, welcome to Public Radio's travel show that takes you to the final frontier.

I'm Matt Kaplan. Dr. Philip Morrison passed away on April

22nd at his home in Cambridge, Massachusetts. In his 89 years on this

little planet, his mind and spirit encompassed the entire universe.

We'll talk about the man and his legacy with Harvard physicist and SETI researcher Paul Horowitz

and former head of the Jet Propulsion Laboratory Bruce Murray.

That other Bruce, Bruce Betts, will also be here with another what's up segment.

And here's a quick look at some of the headlines circling our planet and others.

You've probably heard that NASA has pushed back the launch date for space shuttle discovery.

The new window for the so-called Return to Flight Mission is July 13 to 31.

Deep Impact has found its deep space destiny.

With almost two months to go till its spectacular collision, the probe has taken its first picture of Comet Temple 1.

You can see it at planetary.org.

That's where you can also check up on those plucky if slightly cranky Mars Rovers spirit and opportunity.

They continue to explore the surface of the red planet in spite of minor mechanical and software

glitches.

Opportunity was crossing some sandy ripples when it unexpectedly got caught in one of them,

burying itself up to its hubcaps, or at least to where its hubcaps would be if it had any. Principal investigator Steve Squires

says the team will take its time figuring out how to extricate the rover.

Q&A with Emily is up next. She's enjoying the world's first and biggest light show.

It's far out, man.

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