In this space news roundup, Berly McCoy and Regina Barber of NPR's Short Wave talk about tiny autonomous "transformers" that can explore the moon, a debate about the expanding universe, and more.

Two senators from Texas want to move the Space Shuttle Discovery from the Smithsonian in Virginia to Houston. NPR's David Folkenflik talks with activist Joe Stief of the group Keep The Shuttle.

NPR's Adrian Florido speaks with Wall Street Journal reporter Micah Maidenberg about Space X's IPO and what it means for the economics of space exploration.

SpaceX had an enormous IPO on Friday, but is it really worth the price?

NPR's Ailsa Chang talks with Shannon Curry, principal investigator on NASA's MAVEN mission, about the spacecraft's decade of observations of Mars.