Nasa scientists say they've spotted a mysterious object that's darting through space.
The object - which has been named CWISE J1249 - is estimated to be nearly 30,000 times larger than the size of Earth.
Tbf to that BBC article "newsround" is kinda a children's news show thingy kinda why they never has a link to NASA release in it - I'd assume normal BBC article woulda linked NASA release in it