Skip to main content

SciencepediaOpen science

Search

Open science, explored

Science articles: 57Science articles
Interactive tools: 5Interactive tools
Fields of research: 7Fields of research
Topics to explore: 20Topics to explore

SciencepediaOpen science

Data and imagery from NASA, ESA, NOIRLab, Wikimedia Commons and other open sources.

Contact

sciencepedia.contact@gmail.com

Explore

Articles
Categories
Topics

Fields

Cosmos
Health
Physics
Biology
Earth and Climate
Chemistry
Technology and Engineering

Tools

3D Solar System
The Milky Way in 3D
Map of the Universe in 3D
Sky map
Zoom journey
AI Assistant

Legal

Privacy policy
Terms of use
Contact

© 2026 Sciencepedia.

Some content is released under CC BY-SA 4.0 or a compatible licence. The source and licence are stated on each content page.

Immunity · Sciencepedia

Immunity

1 articles

The system that recognises and remembers pathogens - the basis of vaccines and much of modern medicine.

How the immune system recognises a virus

Two lines of defence: one reacts instantly to anything foreign, the other is slower but learns and remembers. Vaccines work through the second.