system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Does the Bifrost lead anywhere or only the Nine Realms?

Heimdall was able to Bifrost Hulk away from a ship in the middle of nowhere. In AoS iirc, Sif Bifrosted the Kree away and took him back to the Kree planet. Also, did Sif take the reality stone to Knowhere using the Bifrost?
gpt
The Bifrost Bridge can go anywhere, but it requires more effort to create the one to one correspondence portal in new locations, so mostly it just goes to the nine realms, and unless stealth or haste is required, to some fairly predictable places in those realms.