What Does an Astronaut See in Space? Experience It Online

Name: LIFTONAUT · Earth Orbit (simulated spaceflight)
Brand: LIFTONAUT
Price: 0.99 EUR
Availability: InStock

Astronauts describe the first minutes of a flight as a sequence of very different worlds: a roaring, shaking climb, a sudden silence when the engines stop, and then a view no photo fully captures.

Everything below comes from NASA and the physics of the atmosphere. The LIFTONAUT simulation recreates the same sequence on the Earth Orbit tour and at the start of every longer flight.

What an astronaut sees: from the pad to the horizon

On the pad the view is ordinary: sky, tower, coastline. As the rocket climbs, the sky darkens from blue to deep violet and then black. The blue of a daytime sky comes from air scattering sunlight; above a few tens of kilometers there is not enough air left to do it.

From orbit, Earth no longer looks flat. The horizon curves, and the whole atmosphere shows as a thin glowing band at its edge: almost all of the air lies below 30 km. At about 400 km a spacecraft circles the planet in about 92 minutes, so the crew sees roughly 16 sunrises and 16 sunsets every day.

At night, cities appear as webs of light, and lightning flickers inside the clouds like camera flashes.
Above the night horizon, a faint green band called airglow shines about 100 km up.
The stars do not twinkle: twinkling is caused by moving air, and there is none outside the window.

What an astronaut hears: the roar, the radio, the silence

Countdown and ignition

The countdown arrives through the headset, not through the hull. At ignition the sound is a deep rumble felt through the seat as much as heard. A launch is so loud that pads use water to protect the rocket: for Artemis II, NASA's pad was designed to release about 400,000 gallons, roughly 1.5 million liters, during liftoff, partly to absorb the sound.

Max Q and the shaking cabin

About a minute after liftoff the rocket passes Max-Q, the moment when it is moving fast while the air is still dense, so aerodynamic stress peaks. The ride is at its roughest, and engines are often throttled down to ease the load.

Engine cutoff and the sudden quiet

When the first-stage engines cut off, the noise and the push vanish at once, and everything loose starts to float. After a few seconds the second stage lights and the push returns, smoother, until the ship reaches orbit.

Why space is silent (and what you can still hear)

Sound is a pressure wave that travels through air, water or rock. In the vacuum of space there is almost nothing to carry it, which is why NASA puts it simply: sound is absent in the vacuum of space. An explosion outside the window would make no noise at all.

Inside a spacecraft it is a different story, because the cabin is full of air. Fans, pumps and air systems run constantly; on the International Space Station they are so present that NASA tests every piece of hardware for noise, to protect the crew's hearing and sleep.

Your seat in the cabin: the view through the window

In LIFTONAUT all ten seats face five windows, and the back row sits 45 cm higher so it can see over the front. You watch from your own seat, look around by dragging, or switch to the window, chase or ground cameras.

The LIFTONAUT cabin at liftoff, seen from a passenger seat: tall windows full of morning light over the coast — Real capture from the LIFTONAUT simulator Liftoff from seat 3.

The simulation follows the real sequence: the sky darkens as the air thins, the engine sound and the camera shake grow with thrust and air pressure, and the flame widens as the air pressure around it drops.

Mission Control: who talks to the crew, and when

On real missions, the flight control team speaks to the crew through one voice, the capsule communicator or CAPCOM, so instructions stay clear. In LIFTONAUT you hear the same structure: the flight director runs the GO/NO-GO poll, Liftonaut Control calls each milestone on the radio, the commander speaks on the cabin intercom, and a guide explains what you see.

Try it: a free flight to orbit

The free trial flight covers the countdown, liftoff, Max-Q, staging, orbit and the trip to the Moon, with no account. The Earth Orbit tour, at €0.99, adds a full lap around the planet with sunrise and sunset and a pass by the space station. Learn more about the launch itself on our rocket launch simulator page.

Astronaut questions

What does an astronaut see in space?

A black sky even in daylight, Earth's curved horizon wrapped in a thin blue layer of atmosphere, about 16 sunrises and sunsets a day in low orbit, city lights and lightning at night, and stars that do not twinkle.

What do astronauts hear in space?

Inside the spacecraft, the hum of fans and pumps and the voices on the radio. Outside, nothing: sound needs air to travel, and space is almost a perfect vacuum.

Can astronauts hear each other in space?

Inside the cabin, yes: it is filled with air, so they talk normally. During a spacewalk they use radios built into their suits, because sound cannot cross the vacuum between them.

How many g's do astronauts feel during launch?

A few g. The Space Shuttle, for example, throttled its engines to keep acceleration at 3 g during the final part of the climb. The LIFTONAUT ascent peaks just over 3 g before main engine cutoff, shown on the instruments; you see it, but do not feel it.

Can you see the Great Wall of China from space?

Not from the Moon: NASA calls that a myth. From low Earth orbit it is difficult or impossible to see with the naked eye, because it is narrow and similar in color to the land around it; photos that show it were taken with powerful lenses.

Sources

The numbers on this page come from these official sources.