First it was a music festival, then a film festival, then an interactive festival. Since then, South by Southwest has added education, the environment and venture capital to its repertoire. Could SXSW Space be far off?
You might see the first step on Friday. NASA is bringing its next-generation space telescope to the , or at least a full-size model of it. The is scheduled to launch in 2018; it鈥檚 the successor to the . KUT鈥檚 Matt Largey spoke with , an astronomer at UT, about the faraway things Webb can see that Hubble can鈥檛, because of the Doppler effect.
When things move away from you, the waves get stretched, and that makes them look redder. And so essentially all galaxies are moving away from us because the universe is expanding. And the more farther away a galaxy is, the faster it鈥檚 moving away from us, and the more shifted its light gets; we actually call this shift a red shift, because everything is moving away so it gets redder. You kind of get to the point Hubble can only see so far before all of the visible light that you normally see in your eye gets completely red-shifted out of Hubble鈥檚 range.
