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What can go 25000 mph?

Spacecraft, such as the NASA Orion capsule returning from the moon, reach speeds of nearly 25 , 000 mph 2 5 , 0 0 0 m p h ( 11 km/s 1 1 k m / s ) during reentry into Earth's atmosphere. This speed, known as escape velocity, is required to break free from Earth's gravity. Other objects traveling at or above this speed include Apollo command modules and various deep-space probes. Georgia Institute of Technology +3
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Do rockets go 25,000 mph?

Yes, rockets need to reach speeds around 25,000 mph (or about 11.2 km/s) to achieve Earth's escape velocity, allowing them to break free from our planet's gravity and travel to other planets or deep space, though speeds for just Earth orbit are lower, around 17,500 mph. For return trips, like from the Moon, spacecraft also hit this speed, requiring heat shields to survive atmospheric entry.
 
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How fast is SpaceX going in mph?

NASA's SpaceX Crew-10: Four Astronauts, a 17,500 MPH Rocket, and 200+ Experiments.
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What is the speed to escape Earth gravity?

The value GM is called the standard gravitational parameter, or μ, and is often known more accurately than either G or M separately. For example, with the definitional value for standard gravity of 9.80665 m/s2 (32.1740 ft/s2), the escape velocity from Earth is 11.186 km/s (40,270 km/h; 25,020 mph; 36,700 ft/s).
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Why is 1 hour 7 years in space?

In Interstellar, the extreme time dilation experienced on Miller's Planet — where just one hour equates to seven Earth years — illustrates the gravitational effects of Gargantua, the black hole that looms nearby. Here, gravity warps spacetime so dramatically that the passage of time is profoundly affected.
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What does the speed of light look like on earth?

Is space silent or loud?

Space is generally quiet because it's a near-perfect vacuum, lacking the air or medium for sound waves (vibrations) to travel, meaning you can't hear screams or explosions directly; however, there are faint noises from celestial bodies and plasma, but these aren't audible sounds for humans and are detected as radio waves or pressure waves in gas clouds.
 
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Could humans survive in 2x gravity?

Humans can likely survive 2x gravity (2G) for short periods or with intense conditioning, but long-term survival is extremely challenging, requiring significant physiological adaptation or technological assistance, as the body faces immense strain on the heart, bones, and muscles, making everyday tasks exhausting and potentially leading to organ failure or chronic health issues. While a person might endure 2G, they would feel twice as heavy, struggling with circulation and movement, and future generations would need to evolve shorter, denser bodies to cope. 
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What if we lost gravity for 5 seconds?

Losing gravity for 5 seconds would be catastrophic: unsecured objects, people, oceans, and the atmosphere would fly off tangentially due to Earth's spin, causing immense winds, ear drum ruptures from pressure loss, and suffocation as air escapes into space. When gravity returned, everything would slam back down, triggering massive earthquakes, volcanic eruptions, and floods, making survival impossible for nearly everyone.
 
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What mach is needed to leave Earth?

To break free from Earth's gravity, a spacecraft must reach a staggering speed of 25,008 miles per hour — about Mach 33. This critical threshold, known as escape velocity, is the minimum speed required to overcome Earth's gravitational pull and continue into space without falling back.
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How long is 1 hour in space time?

An hour in space is generally still one hour, but time dilation means it can be slightly longer or shorter than an hour on Earth, depending on speed and gravity; for extreme effects (like 1 hour = 7 Earth years), you need immense gravity (near a black hole) or near-light speed, as seen in the movie Interstellar, but for astronauts on the ISS, the difference is fractions of a second. 
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How fast is the Tesla in space going?

The maximum speed of the car relative to the Sun will be approximately 121,000 km/h (75,000 mph) at perihelion.
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How long will it take SpaceX to reach Jupiter?

It will launch on a SpaceX Falcon Heavy rocket from NASA's Kennedy Space Center in Florida. Europa Clipper will take six years to reach the Jupiter system, where it will enter an orbit of the gas giant that will take it on multiple flybys of Europa.
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Is it true you age slower in space?

Yes, astronauts age slightly slower in space due to time dilation from Einstein's relativity, as their high speed (orbiting Earth) slows time for them more than the weaker gravity speeds it up, making them milliseconds younger than people on Earth after months in orbit, though the effect is tiny and biological changes mimicking aging (like bone/muscle loss) actually occur, even as time itself slows slightly for them.
 
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Could you survive 1 second in space?

Yes, you can survive exactly 1 second in space without a suit, but the next few seconds are critical: you'd lose consciousness in 10-15 seconds from lack of oxygen (asphyxiation), with bodily fluids beginning to boil (ebullism) and lungs potentially rupturing if you held your breath, but you wouldn't instantly explode or freeze, with rescue potentially possible within 1-2 minutes.
 
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Is space 60 miles away?

Yes, space is considered to start around 60 miles (100 kilometers) up, a boundary known as the Kármán Line, where the atmosphere becomes too thin for conventional aircraft to fly, although Earth's atmosphere gradually fades into space, with some defining it closer (around 50 miles) for military purposes.
 
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How many years are left for Earth?

Earth will likely remain a viable planet for life for another 1 billion years, but will become uninhabitable for humans much sooner due to the Sun's increasing brightness, leading to oceans evaporating and a collapse of the atmosphere's oxygen, with the planet ultimately being consumed by the Sun in about 4.5 to 5 billion years when the Sun becomes a red giant.
 
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What if gravity was 1% more powerful?

If gravity were 1% stronger, you'd feel slightly heavier, plants and animals would be shorter and sturdier, flight would be harder, and the Earth's geology, atmosphere (denser, hotter), and orbit (shorter year) would subtly change, leading to more intense tides, earthquakes, and a potentially strained heart over time, making everyday activities more tiring but likely survivable for humans adapted over millions of years, though initial disruption would be significant. 
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Do you feel pain in zero gravity?

Yes, you can feel pain in zero gravity, primarily due to spinal elongation and muscle deconditioning, leading to common issues like "space adaptation back pain" and disorientation, though the absence of gravity also removes pressure, which can relieve other types of pain temporarily. Astronauts often experience headaches and fluid shifts causing congestion, while bone and muscle atrophy are major long-term concerns, causing pain upon returning to Earth as bodies readjust.
 
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Can Earth support 1 trillion people?

Yes, a trillion people could physically fit on Earth with advanced technology like vertical cities and efficient resource management (food, water, energy), but current methods couldn't sustainably support them; it's a question of resource capacity (food, water, waste, energy) rather than raw space, requiring massive technological leaps for survival, although some argue advanced farming could make it possible.
 
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Will you age slower on Mars?

You would age slightly faster in terms of measured time on Mars due to weaker gravity (gravitational time dilation), but biological aging could be different due to lower gravity's effects on the body (muscle/bone loss) and increased radiation, making the overall experience complex, though the physical time difference is negligible without atomic clocks. For observers on Earth, time passes slightly quicker on Mars, meaning an Earthling would technically be a tiny bit "older" than a Martian after the same duration when compared back on Earth.
 
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Can humans survive 0.5 atm?

Yes, humans can survive at 0.5 atm (about 17,500 feet or 5,000 meters), as it's the pressure found at high-altitude villages where people live, but it causes significant physiological stress like hypoxia (lack of oxygen) and requires acclimatization, though some highly trained individuals like Everest climbers have even summited Everest at much lower pressures (~0.33 atm) by adapting or using supplemental oxygen. The primary challenge at 0.5 atm is the reduced oxygen partial pressure, leading to altitude sickness, but it's within the range where the body can function, unlike the Armstrong limit (0.06 atm) where body fluids boil. 
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Can you hear a scream in space?

You may have heard this saying. It's the tagline from the famous 1979 science fiction movie “Alien.” It's a scary thought, but is it true? The simple answer is yes, no one can hear you scream in space because there is no sound or echo in space.
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What is the sound of a black hole?

On how the black hole audio was made

And the scientists who originally studied the data were able to find out what the note is. And it was essentially a B-flat about 57 octaves below middle C.
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Is there 0 sound in space?

No, there is no sound in the vacuum of space as we know it because sound needs a medium (like air or water) of particles to travel, and space is mostly empty; however, NASA has detected pressure waves in gas clouds, which can be "sonified" (translated into audible sound) but are too low-frequency for humans to hear directly, so it's not "silent," but rather a lack of audible sound for humans. Astronauts communicate via radio waves, not sound, in space.
 
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