- SpaceX
- A US company led by Elon Musk that builds rockets and runs the Starlink satellite network.
- Starlink
- A satellite internet system run by SpaceX that gives internet access from space.
- Anthropic
- An AI company that announced a fund giving at least 5% of its shares for community benefit.
- MMX
- Martian Moons eXploration, a Japanese robotic spacecraft that will visit Mars's moon Phobos and bring back samples.
- Phobos
- The larger of Mars's two small moons.
- H3
- Japan's two-stage rocket, developed by JAXA and Mitsubishi Heavy Industries.
- ICEYE-X36
- A commercial satellite run by a US operator that takes pictures of Earth.
- Idefix
- A small four-wheeled rover from the French and German space agencies that will explore Phobos's surface.
- Kosmos 2612
- A Russian military satellite that moved very close to a commercial satellite in orbit.
- Trump Accounts
- Accounts for children that the article says will receive the SpaceX shares. The article does not explain them in detail.
- X
- A social media website where Musk posted his offer.
- 800 MHz spectrum
- A band of radio frequencies used for mobile phone signals. It works best with towers, not satellites.