Light is fast. In fact, it is the fastest thing that exists, and a law of the universe is that nothing can move faster than light.
How fast could humans travel safely through space?
Why is the Earth Spinning Faster Than Usual?
McKinsey Technology Trends Outlook 2023
The future of transportation: Where will we go?
How far does a probe need to go above or below the Milky way to
NASA Wants to Set a New Radiation Limit for Astronauts
Mind-blowing tech could let humans travel from New York to Los Angeles in 1 second
Speed of light - Wikipedia
Animation: Using Planets to Visualize the Speed of Light
The Next Robots on the Moon, Air & Space Magazine
Is time travel really possible? Here's what physics says
Space Communications: 7 Things You Need to Know - NASA