How long does it take for radio waves from the Voyager 1 spacecraft, launched in 1977, to reach Earth, given the current distance between the two?

Light from the Sun takes 8 minutes and 20 seconds to reach Earth

Sunlight travels approximately 149.6 million kilometers to Earth in 8 minutes and 20 seconds

Your DNA stretched end to end would reach the Sun and back over 600 times

Human DNA length: 2 meters, Sun-Earth distance: 150 million km, repetitions: 900,000,000

The observable universe is about 93 billion light-years in diameter

The observable universe spans approximately 93 billion light-years across

The shortest international border is between Botswana and Zambia — about 150 meters

Botswana-Zambia border: approximately 150 meters

A day on Venus is longer than its year — it rotates so slowly it takes 243 Earth days

Venus's rotation period exceeds its orbital period, resulting in a longer solar day than year

The first photograph took 8 hours of exposure — taken by Niépce in 1826

Niépce's daguerreotype, first photograph, required 8 hours exposure in 1826