Space

Can people here sound in space?

Can people here sound in space?

No, you cannot hear any sounds in near-empty regions of space. Sound travels through the vibration of atoms and molecules in a medium (such as air or water). In space, where there is no air, sound has no way to travel.

  1. Is space completely silent?
  2. What can be heard in space?
  3. Do we age faster in space?
  4. What is 1 light year away?
  5. Is space completely dark?
  6. Why is it quiet in space?
  7. Has NASA lost a man in space?
  8. How long is 1 year in space?
  9. Is it true that 1 hour in space is 7 years on Earth?
  10. How long is 1 second in space?
  11. How long is the trip to Mars?
  12. How fast can we travel in space?
  13. What's the scariest thing in space?
  14. Where does space end?

Is space completely silent?

In space, no one can hear you scream. This is because there is no air in space – it is a vacuum. Sound waves cannot travel through a vacuum. ... Space is usually regarded as being completely empty.

What can be heard in space?

In space, nobody can hear you scream, but with the right equipment, it is possible to detect a roar. That's what scientists discovered back in 2006 when they began to look for distant signals in the universe using a complex instrument fixed to a huge balloon that was sent to space.

Do we age faster in space?

Flying through outer space has dramatic effects on the body, and people in space experience aging at a faster rate than people on Earth. ... These studies showed that space alters gene function, function of the cell's powerhouse (mitochondria), and the chemical balance in cells.

What is 1 light year away?

A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km).

Is space completely dark?

How dark does space get? If you get away from city lights and look up, the sky between the stars appears very dark indeed. Above the Earth's atmosphere, outer space dims even further, fading to an inky pitch-black. And yet even there, space isn't absolutely black.

Why is it quiet in space?

The common explanation for this is that space is a vacuum and so there's no medium for sound to travel through. ... Space is never completely empty – there are a few particles and sound waves floating around. In fact, sound waves in the space around the Earth are very important to our continued technological existence.

Has NASA lost a man in space?

A total of 18 people have lost their lives either while in space or in preparation for a space mission, in four separate incidents. ... All seven crew members died, including Christa McAuliffe, a teacher from New Hampshire selected on a special NASA programme to bring civilians into space.

How long is 1 year in space?

**One year in space would be 365 days /1 year on earth..... It takes 365 days for Earth to complete 1 revolution around the Sun...

Is it true that 1 hour in space is 7 years on Earth?

The first planet they land on is close to a supermassive black hole, dubbed Gargantuan, whose gravitational pull causes massive waves on the planet that toss their spacecraft about. Its proximity to the black hole also causes an extreme time dilation, where one hour on the distant planet equals 7 years on Earth.

How long is 1 second in space?

The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second, and is equal to exactly 299,792,458 metres (983,571,056 ft).

How long is the trip to Mars?

The trip to Mars will take about seven months and about 300 million miles (480 million kilometers). During that journey, engineers have several opportunities to adjust the spacecraft's flight path, to make sure its speed and direction are best for arrival at Jezero Crater on Mars.

How fast can we travel in space?

For centuries, physicists thought there was no limit to how fast an object could travel. But Einstein showed that the universe does, in fact, have a speed limit: the speed of light in a vacuum (that is, empty space). Nothing can travel faster than 300,000 kilometers per second (186,000 miles per second).

What's the scariest thing in space?

Supermassive black holes are strange

The biggest black hole discovered so far weighs in at 40 billion times the mass of the Sun, or 20 times the size of the solar system.

Where does space end?

It extends about 20 miles (32 kilometers) above the Earth. Floating around the atmosphere is a mixture of molecules – tiny bits of air so small you take in billions of them every time you breathe. Above the atmosphere is space.

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