Chronoscope · Interactive Timeline
TIME MACHINE
DIAL.
Drag through 13.8 billion years. From the first second of the universe to the night sky above you tonight — watch the cosmos wake up, one epoch at a time.
13.8B YA
Years Ago
The Big Bang
t = +1 second
OBSERVING 13.8 billion years ago
One second in. The universe is a searing plasma — hotter than any star, smaller than a galaxy, expanding faster than thought. No stars, no light to see, only raw energy cooling into matter.
From the Big Bang
13.8 billion years ago
Until First Humans
You are here
Did you know? In its first second the universe was ~10¹⁰ K — a billion times hotter than the Sun's core.
Drag the dial or pick an era — the sky responds in real time