Hubble Space Telescope

More powerful than the Hubble Space Telescope, the $10 billion Webb will scan the cosmos for light streaming from the first stars and galaxies formed 13.7 billion years ago.
Europa, which is smaller than our own moon, appears as a pale dot alongside its giant, color-streaked gas planet.
The nebula is a "raucous star nursery full of birth and destruction," NASA says.
The number of galaxies in the universe may be in the trillions -- and that's a lot of suns, planets and possibilities for life.
Well, here I go again talking about space. The seemingly endless cosmos has given me an equally vast number of topics to
New estimate puts the number at 1 trillion to 2 trillion.
The discovery could hasten the search for alien life.
It's a unique look at "unimaginable cosmic violence."
As astrophysicist Adam Riess explains in this fascinating Q&A, the cosmos will double in size 800 million years sooner than predicted.