This is WEEKEND EDITION from NPR News. I'm Scott Simon and we'll have to wait until June to learn what the U.S. Supreme Court has decided on the two gay marriage cases before it. But this week, the justices heard oral arguments and they gave perhaps some hints of their thinking. One case concerns the constitutionality of California's ban on gay marriage, the other case is a challenge to what's called DOMA, the Defense of Marriage Act.
We're joined now by NPR legal affairs correspondent, Nina Totenberg. Thanks for being with us.
You're listening to SCIENCE FRIDAY. I'm Ira Flatow. And for the rest of the hour we're going to talk about collisions, space collisions, space impacts, with Erik Asphaug, who's Ronald Greeley chair of planetary geology, School of Earth and Space Exploration at Arizona State University. Welcome to SCIENCE FRIDAY.
ERIK ASPHAUG: Thanks very much, Ira.
FLATOW: You must be very busy since this last collision in Russia of this asteroid.