Los científicos anunciaron un gran descubrimiento.
The scientists announced a great discovery.
Este descubrimiento ayudará a muchos enfermos.
This discovery will help many sick people.
Note
The article is part of the word: el descubrimiento. That way you learn the gender with it.
Remember el descubrimiento for good. ripiti brings the word back just before you forget it, with these sentences. Free, no account needed, works offline.