Answer:
The Hubble space telescope.
Step-by-step explanation:
Hubble is a telescope that observers the sky 24/7 non-stop, which means that for every day of the year it would have made a significant discovery, which of course includes your birthday. Furthermore, you can actually go to NASA website and find out what discovery was made on your birthday! This shows both the vastness of the universe (it really has to be huge for a telescope to have a discovery for each day of the year!) and the ceaseless work of the telescope!