The Lost Universe

NASA's Tabletop Role-Playing Game Adventure

Illustration Title: "The Lost Universe" in yellow at the top of the page. A green, yellow, and beige dragon is wrapped around an illustration of the Hubble Space Telescope. The image background is in various shades of blue and black and depicts a dark forest with trees in black silhouette.

Calling all adventurers!

It’s time to gather your party and your favorite tabletop role-playing game system.

A dark mystery has settled over the city of Aldastron on the rogue planet of Exlaris. Researchers dedicated to studying the cosmos have disappeared, and the Hubble Space Telescope has vanished from Earth’s timeline. Only an ambitious crew of adventurers can uncover what was lost. Are you up to the challenge?

This adventure is designed for a party of 4-7 level 7-10 characters and is easily adaptable for your preferred tabletop role-playing game (TTRPG) system.

NASA’s first TTRPG adventure invites you to take on a classic villain (while also using and learning science skills!) as you overcome challenges and embark on an exciting quest to unlock more knowledge about our universe. Download your game documents below and get ready to explore Exlaris!

Want to share how your adventure unfolds? Share it with #NASATTRPG on social media.

Reporter questions about the module may be directed to Claire Andreoli and Rob Garner in the Office of Communications at NASA's Goddard Space Flight Center.

NASA's Goddard Space Flight Center, Lead Producer: Paul Morris

The Lost Universe

Illustration Title: "The Lost Universe" in yellow at the top of the page. A green, yellow, and beige dragon is wrapped around an illustration of the Hubble Space Telescope. The image background is in various shades of blue and black and depicts a dark forest with trees in black silhouette.

The Lost Universe

Download The Lost Universe gameplay instructional booklet.

An illustration of a map. It is the color of parchment paper.

Map of Aldastron

Download the map of Aldastron to help you navigate through your adventure.

Illustration Title: "The Lost Universe" in yellow at the top of the page. A green, yellow, and beige dragon is wrapped around an illustration of the Hubble Space Telescope. The image background is in various shades of blue and black and depicts a dark forest with trees in black silhouette.

The Lost Universe Poster

Download and print The Lost Universe poster.

More Hubble Online Activities

Faint band of stars, gas, and dust stretches from left to right across the frame. This band is a representation of our galaxy as seen from space, edge-on. Colorful icons representing the types of objects Hubble has observed litter the frame: blue stars, orange spiral for galaxies, pink clouds for nebulae, yellow swirling top for exotic objects, and a green circle for exoplanets.

Get a Hubble's-eye-view of cosmic objects

An astronaut stands in front of a background of a nebula against a deep field of galaxies. The words "Name That Nebula" hovers above.

Match nebulae with their names

Photograph of Hubble orbiting the Earth

Virtually Tour Hubble in orbit

A title slide that says "astronaut Fun Facts"

Play this trivia game and test your knowledge!

360 image of Hubble's "Space Telescope Operations Control Center" The image is stretched because it is designed for 360 degree viewing. The image shows many desks within the control center with data on their screens.

Take a virtual tour of Hubble's operations center