Roman Space Telescope to Scale with Tyrannosaurus rex

This illustration shows the relative scale of the Nancy Grace Roman Space Telescope and a Tyrannosaurus rex. Roman will be over 42 feet (12.7 meters) long — about the length of a T. rex — and over 14 feet (4.4 meters) wide when fully deployed. Roman will also weigh around 18,000 pounds, or 8,000 kilograms (dry mass) – which is the approximate mass of a Tyrannosaurus rex as well.

Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

This slider shows Roman and a T. rex scaled relative to each other.

This single image of a T. rex is scaled relative to the single Roman image and includes a PNG with alpha channel option.

Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

This single image of Roman is scaled relative to the single T. rex image and includes a PNG with alpha channel option.

Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

This image has Roman and the T. rex in gray-scale tones only and not exactly scaled relative to each other.