The astronomical discovery with seven Earth-sized planets is the top trending topic on Facebook.

The find captured Twitter frenzy when the news broke Wednesday, and the chatter continues on Facebook Thursday, along with a .

Social Cues is our look at what is trending across Facebook and Twitter. Here is what people are talking about on social media this Thursday:

Trappist-1: If you discover seven Earth-like planets that are , yes, you will become the top trending topic on social media. Scientists made the announcement Wednesday afternoon about seven planets that orbit a relatively nearby star (just 39 light-years away!) and called Trappist-1 the most incredible star system they've ever seen.