internet archive is a non-profit digital library offering free universal access to books, movies & music, as well as 624 billion archived web pages.

nasa.gov brings you the latest news, images and videos from america's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.

innovation news network deliver the latest science, research & innovation news including digital healthcare, space, e-mobility, biodiversity & aquaculture.

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an online latex editor that’s easy to use. no installation, real-time collaboration, version control, hundreds of latex templates, and more.

desmos offers best-in-class calculators, digital math activities, and curriculum to help every student love math and love learning math.

learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. khan academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

find and read more books you’ll love, and keep track of the books you want to read. be part of the world’s largest community of book lovers on goodreads.

inaturalist is a social network for naturalists! record your observations of plants and animals, share them with friends and researchers, and learn about the natural world.