NASA's newest planet-hunting spacecraft will have to wait another two days before lifting off. Two hours before today's scheduled liftoff, SpaceX announced it was delaying the launch of additional rocket analysis. The next attempt will be on Wednesday.
The satellite known as Tess will survey almost the entire sky, staring at the brightest, closest
stars in an effort to find any planets that might be encircling them. These mysterious worlds beyond our solar system, called exoplanets, could harbour life.
Scientists expect Tess to discover thousands of rocky and icy planets and gas giants, maybe even water worlds and places defying imagination.