Astronomy Labs
Interactive lab

Hubble Expansion Lab

Adjust the Hubble constant and compare distance with recession velocity on a live graph.

Distance (Mpc)km/s
Recession velocity7,000 km/s
H₀70
d100 Mpc

Interactive model — simplified for intuition, not precision ephemerides.

Concepts in this lab

redshiftdistancehubble constantexpansion
Connected topic

Hubble–Lemaître expansion

A complete introduction to Hubble–Lemaître expansion within Relativistic cosmology, linking observations, physical models, history and modern applications.

Open lesson