SpaceX is at it again, this time with its reusable Grasshopper rocket.  Famous for designing a reusable cargo vessel for NASA, they’ve designed a reusable rocket to make resupplying the International Space Station (and who knows what else in the future) even more cost effective.  The innovations in the space exploration industry are almost too many to count, and coming about very quickly.  While we might still be a ways off from regular space travel between planets, the industry has definitely been born and is well into its infancy!