| University Physics Volume 3: OpenStax Provider: ecampusontario open library Language: English |
| The dark universe: dark matter and dark energy Provider: videolectures.net Language: English |
| ENERGIA Cap.I°.1 Provider: university of bologna digital library Language: Italian |
| Evidence for AGN Feedback in Galaxy Clusters and Groups Provider: university of bologna digital library Language: English |
| Astronomy: OpenStax Provider: ecampusontario open library Language: English |
| Space Systems Engineering Provider: mit opencourseware Language: English |
| Introduction to Cosmology - Theoretical Physics - Introductory Lecture Provider: videolectures.net Language: English |
| Basic on Gravitational waves Provider: university of bologna digital library Language: English |
| University Physics Volume 1: OpenStax Provider: ecampusontario open library Language: English |
| Exploring Black Holes: General Relativity & Astrophysics Provider: mit opencourseware Language: English |