In a vacuum, light travels at 670,616,629 mph (1,079,252,849 km/h). To find the distance of a light-year, you multiply this speed by the number of hours in a year (8,766). The result: One light-year equals 5,878,625,370,000 miles (9.5 trillion km).

How long would it take to get to the sun from Earth?

On average, the sun is 93 million miles from the earth. It would take 1,430,769 hours to drive there at 65 miles per hour. It would take 59,615 days to drive there at 65 miles per hour. It would take 163 years to drive there.

Who first calculated the distance to the sun?

astronomer Aristarchus
Historically, the first person to measure the distance to the sun was the Greek astronomer Aristarchus around the year 250 B.C. He used the phases of the moon to measure the sizes and distances of the sun and moon.

How many Earths can fit between the Earth and the sun?

one million Earths
The sun lies at the heart of the solar system, where it is by far the largest object. It holds 99.8% of the solar system’s mass and is roughly 109 times the diameter of the Earth — about one million Earths could fit inside the sun.

How fast can we travel a light year?

186,282 miles per second
Saying we were a space shuttle that travelled five miles per second, given that the speed of light travels at 186,282 miles per second, it would take about 37,200 human years to travel one light year. That’s a long time, and what would you see?

What is the oldest thing we can observe in the universe?

Astronomers have confirmed the discovery of one the oldest and most distant objects ever known in the universe — a star-forming galaxy 12.8 billion light-years away that started forming within a billion years of the Big Bang that kickstarted everything.

How hot is sunlight in space?

around 120°C
Objects in direct sunlight in Earth orbit get heated to around 120°C (248°F). And yet, there’s a paradox: You also need spacesuits to protect you from being frozen. Even in Earth orbit, space can be very cold.

Can humans reach the sun?

But if you take a look around, there’s nothing here for you to actually land on, because the sun doesn’t have any solid surface to speak of. It’s just a giant ball of hydrogen and helium gas. So instead of landing on the photosphere, you’re going to sink into it.