4search. SPACE is a topic-focused search engine designed to help space professionals, educators, hobbyists, and enthusiasts discover useful information across the space sector. Part of the 4SEARCH network of specialized search engines, it combines multiple indexes, expert curation, and AI to surface relevant resources more efficiently.

Visitors can search for mission information, datasets, research papers, articles, news, websites, products, and tools. The platform brings together web search, news, shopping, image and video results, and an AI mode tailored to space-related queries, making it useful for both focused research and general exploration. Its homepage also features curated coverage on subjects such as space and astronomy, satellites, launches, and the aerospace industry, alongside broader topic categories.

Users can explore related coverage by keywords, people, organizations, places, and other metadata. Additional services and resources include advertising opportunities, data licensing information, privacy and accessibility policies, and options to install the site as an app or add it to a device’s home screen