Borealis

The "Borealis" is a lost mysterious ship. Originally owned by Aperture Science before they lost funding to Black Mesa.

The link between the Half-Life universe and Portal

Borealis as seen in HL2: EP2

This is a picture seen at the end of Half-Life 2: Episode Two. There is a the container saying "Aperture Science", so there definently is a link between the Half-Life universe and Portal.

See Also

• Half-Life 2: Episode Two
• Half-Life 2: Episode Three
• Portal