Why is it hard to liquidify hydrogen?

It is hard to liquidify hydrogen because it has a very low boiling point of -252.87°C (-423.17°F), which is close to absolute zero. This means that hydrogen must be cooled to extremely low temperatures in order to condense it into a liquid state. Additionally, hydrogen has a very low density, which makes it difficult to compress into a liquid form. These factors make the process of liquidifying hydrogen energy-intensive and technically challenging.