Are we alone in the universe? To answer this question, astronomers have been using a variety of methods in the past decades to search for habitable planets and for the signals from extraterrestrial observers.
The first part of this venture has been highly successful: More than 2,000 planets around distant stars — so called exoplanets — have been found so far. The second part, the search for extraterrestrial intelligence (SETI), has not yet been successful.
Via
Dr. Stefan Gruenwald
Cool demo of what reusable rocket technology could mean outside of space travel. And a way to pay back for the space program through the huge impact it could have on the economy.