Mojo is a superset of Python. If you already know Python programming then your learning curve will be shortened to learn Mojo. It’s a new language which will be released as an open source project soon.
Mojo programs are multi-threaded and it enables parallel processing across multiple cores. This and other language constructs allow it to run thousands of times faster than Python does. It borrows the concepts of Ownership and Borrow Checker from Rust and has several other features which make it robust enough for bare metal programming as well as for high level programming.
Here’s a tutorial which shows you how to install and get started with Mojo on Ubuntu.