0 right here

Your motion through space, the stardust you are made of, and what passes through you every second.

• Your journey
  Since you opened this page, and since you were born
• Made of stars
  Where your atoms came from
• Passing through you
  Neutrinos, muons, ancient light
• Your sky
  The light above you tonight

1.3 light-seconds

The thin shell of near space: the people living up there, everything in orbit, and what falls in.

• Earth from space
  Today's whole-Earth photo, the overview effect
• People in space
  Who is up there right now
• Satellites and debris
  Everything in orbit, and the junk
• Launches
  What goes up next
• The Moon
  Phases, tides, and drifting away
• Meteors and fireballs
  Space rocks in our sky

8.3 light-minutes

Our star and its weather, the planets, the rocks we watch, and the craft we sent out.

• The Sun
  Our star, live
• Space weather
  Solar wind, flares, aurora
• Planets
  Eight planets and the dwarfs
• Asteroids and comets
  What passes close, and what we watch
• Spacecraft
  Where everything we sent is now
• The edge
  The Sun's bubble and the Oort cloud

4.2 light-years

The nearest stars, the light in your sky, and the birth and death of stars everywhere.

• Nearby stars
  Our neighbours
• The stars you can see
  When their light set out
• Birth and death of stars
  Ten thousand born every second
• Other worlds
  Planets around other stars
• Mapping the stars
  Gaia and its billions

26,000 light-years

Our galaxy: its hundreds of billions of stars, the black hole at its heart, and our long orbit around it.

• Our galaxy
  Its size, shape and stars
• The black hole at the centre
  Sagittarius A*
• Our orbit
  One lap every 210–250 million years
• Supernovae in our galaxy
  Overdue since 1604

2.5 million light-years

Andromeda falling toward us, the trillions beyond, and the most violent events in nature.

• Andromeda and our neighbours
  The Local Group
• How many galaxies
  Hundreds of billions, or two trillion
• Laniakea and the cosmic web
  Our home supercluster
• The violent universe
  Gamma-ray bursts, gravitational waves

46.5 billion light-years

Its age, its growth, what it is made of, how it began and how it may end.

• The age of the universe
  13.787 billion years, ticking
• The expanding universe
  And why we disagree on how fast
• The first light
  The cosmic microwave background
• What it is made of
  Mostly things we can't see
• The edge of what we can see
  46.5 billion light-years away
• The far future
  How it may end