Summary
It is a blazar, which sends fast streams of hot gas toward us.
Inside, two giant black holes dance around each other every 12 years.
Scientists from many countries used lots of telescopes to study its light.
Key Points
4 points1
Studied OJ 287 for ten years.
2
OJ 287 is a blazar that sends fast gas streams.
3
Two huge black holes orbit each other.
4
Scientists from many countries helped.
New Words to Learn
4 wordsblazar
a bright space object that shoots fast streams of hot gas toward Earth
black hole
a spot in space with very strong gravity that pulls everything in
plasma
super‑hot gas made of tiny charged particles
telescope
a tool that helps us see faraway things in space
Want to learn even more? Click here to read the full story!
🔊 Reading Article
Kid-friendly voice