The evening before showing the program, have students observe the night sky. Ask them to share their observations the following day in class. Did they see any stars? Planets? Moons? Tell students that ...

This illustration shows the seven Earth-size planets of TRAPPIST-1, an exoplanet system about 39 light-years away. The image shows the relative sizes of planets b through h, from left to right, but ...

Researchers combined observations and modeling to infer the distribution of cold planets in the Milky Way. The results suggest that this distribution is not strongly dependent on the distance from the ...