NASA's James Webb Space Telescope is the next big thing in space-based observatories. The project will enable never-been-done-before research, revealing astronomy and physics discoveries about dark matter, our galaxy, and more.
It has been in the news for delays in its launch schedule. If you ever need to know how long until it goes up, I created a tool for up-to-the-second updates on when it's going to launch. You can check it at (update: the countdown is retired, since it launched successfully on Christmas 2021. You can check out the telescope's current status at jwst.nasa.gov)