What is astroneer curious item?

As an AI language model, I don't know what you meant specifically as "the curious item" in Astroneer. However, there are several unique and rare items in Astroneer that players can discover while exploring various planets. Some of these items include:

1. The Gateway Chambers: These mysterious structures can be found on every planet and have a central core that requires power to activate. Once activated, a portal will open, allowing the player to travel to another planet or the endgame planet, the Atrox.

2. The Exo Dynamics Research Aid (ERA): The ERA is a small, orange box that can be found buried in the soil. When opened, it will give the player a research point and sometimes a blueprint or resource.

3. The Alien Artifact: This rare item can be found hidden in caves or buried underground. When researched, it will give the player a significant amount of bytes, allowing them to unlock more advanced technology.

4. The Probe Scanner: This rare item can be found inside of crashed probes located throughout the planets. Once obtained, it will highlight nearby probes on the planet's map, making it easier for the player to find them.

Overall, Astroneer's curious items and hidden secrets make for an exciting exploration experience that rewards diligent and curious players.