Is a 70mm telescope good for stargazing and observing celestial objects?

Well, honey, a 70mm telescope is like bringing a spoon to a buffet—it'll have limited capacity to gather light compared to larger telescopes. It's decent for checking out the Moon and brighter planets, but don't expect it to show you all the galactic goodies like a bigger, badder telescope would. So, if you're just dipping your toes into stargazing, go ahead and give it a whirl, but don't expect Hubble-level views, OK?