What happens if you travel at the speed of light?

If an object ever did reach the speed of light, its mass would become infinite. And as a result, the energy required to move the object would also become infinite: an impossibility.
Takedown request   |   View complete answer on space.com


Do you age if you travel at the speed of light?

The simple answer is, anything moving through space at c, equal to the speed of light in a vacuum, experiences zero time flow. If you were to travel at the speed of light, you would experience no time.
Takedown request   |   View complete answer on thenakedscientists.com


When can you leave Earth at the age of 15?

If you leave Earth at the age of 15 in a spaceship at the speed of light and spend 5 Years in space, when you get back on Earth you will be 20 years old and all your friends who were 15 when you left will be 65 years old. This phenomenon is known as "Time Dilation" in Physics.
Takedown request   |   View complete answer on m.facebook.com


Why time stops at the speed of light?

In the limit that its speed approaches the speed of light in vacuum, its space shortens completely down to zero width and its time slows down to a dead stop.
Takedown request   |   View complete answer on wtamu.edu


Is an hour in space 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.
Takedown request   |   View complete answer on thedailybeast.com


What If You Could Travel at the Speed of Light



Is Twin Paradox real?

Q: Does the twin paradox exist? The twin paradox is real as the traveling twin will see the Earth clock moving as slowly as the twin on the Earth. Yes, it is real but shouldn't really be called a paradox. Q: How is special relativity different from general relativity?
Takedown request   |   View complete answer on wondriumdaily.com


Is time Travelling possible?

Yes, time travel is indeed a real thing. But it's not quite what you've probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel.
Takedown request   |   View complete answer on spaceplace.nasa.gov


Does the past still exist?

In short, space-time would contain the entire history of reality, with each past, present or future event occupying a clearly determined place in it, from the very beginning and for ever. The past would therefore still exist, just as the future already exists, but somewhere other than where we are now present.
Takedown request   |   View complete answer on cea.fr


What is inside a black hole?

The singularity at the center of a black hole is the ultimate no man's land: a place where matter is compressed down to an infinitely tiny point, and all conceptions of time and space completely break down. And it doesn't really exist.
Takedown request   |   View complete answer on space.com


Are wormholes real?

Wormholes are shortcuts in spacetime, popular with science fiction authors and movie directors. They've never been seen, but according to Einstein's general theory of relativity, they might exist.
Takedown request   |   View complete answer on supernova.eso.org


Do you age slower in space?

Scientists have recently observed for the first time that, on an epigenetic level, astronauts age more slowly during long-term simulated space travel than they would have if their feet had been planted on Planet Earth.
Takedown request   |   View complete answer on publichealth.berkeley.edu


What did Einstein say about the twin paradox?

In his famous paper on special relativity in 1905, Albert Einstein deduced that when two clocks were brought together and synchronized, and then one was moved away and brought back, the clock which had undergone the traveling would be found to be lagging behind the clock which had stayed put.
Takedown request   |   View complete answer on en.wikipedia.org


What is clock paradox?

clock paradox (plural clock paradoxes) (relativity) The phenomenon in which two observers who start together with identical clocks, follow different timelines, and then rejoin can have different elapsed times on their clocks, especially if one travels at a relativistic speed.
Takedown request   |   View complete answer on en.wiktionary.org


How cold is space?

The Cosmic Background Explorer (COBE) satellite has refined temperature measurements taken way back in 1964. According to data from the Cosmic Background Explorer (COBE) satellite, the temperature of space is 2.725K (2.725 degrees above absolute zero).
Takedown request   |   View complete answer on sciencefocus.com


What does space smell like?

A succession of astronauts have described the smell as '… a rather pleasant metallic sensation ... [like] ... sweet-smelling welding fumes', 'burning metal', 'a distinct odour of ozone, an acrid smell', 'walnuts and brake pads', 'gunpowder' and even 'burnt almond cookie'.
Takedown request   |   View complete answer on science.org.au


What happens if you stay in space for 5 years?

Astronauts who have stayed in space for long periods have problems with their circulation and eyesight. That's in addition to losses in bone and muscle tissue. Kelly has collected fluid samples and undergone rigorous medical testing to document these changes over the course of his trip.
Takedown request   |   View complete answer on theverge.com


What happens to time if you are at the top of a mountain?

According to Einstein's theory of relativity, time moves differently depending on where you are in a gravity field. For example, a clock on top of a tall mountain will move a tiny bit faster than a clock at the base of that mountain, where the gravity is stronger. It's not a mechanical error.
Takedown request   |   View complete answer on washingtonpost.com


Does time on Earth differ on the time in the outer space?

Time is measured differently for the twin who moved through space and the twin who stayed on Earth. The clock in motion will tick more slowly than the clocks we're watching on Earth. If you're able to travel near the speed of light, the effects are much more pronounced.
Takedown request   |   View complete answer on technologyreview.com


Who is older in the twin paradox?

However, the scientists show that the traditional version is actually a specific case of a more general concept. “In the best known version of the twin paradox, the twin who is accelerated is younger,” Abramowicz and Bajtlik told PhysOrg.com. “In the version discussed by us the accelerated twin is older.
Takedown request   |   View complete answer on phys.org


Do astronauts get paid for life?

According to NASA, civilian astronauts are awarded a pay grade of anywhere from GS-11 to GS-14, so the income range is relatively wide. Starting salaries begin at just over $66,000 a year. Seasoned astronauts, on the other hand, can earn upward of $144,566 a year.
Takedown request   |   View complete answer on work.chron.com


How much do astronauts get paid?

The pay grades for civilian astronaut candidates are set by federal government pay scales and vary based on academic achievements and experience. According to NASA , civilian astronaut salaries range from $104,898 to $161,141 per year. Here are a few of the benefits offered to civilian astronauts: Health care.
Takedown request   |   View complete answer on indeed.com


How many dimensions are there?

The world as we know it has three dimensions of space—length, width and depth—and one dimension of time. But there's the mind-bending possibility that many more dimensions exist out there. According to string theory, one of the leading physics model of the last half century, the universe operates with 10 dimensions.
Takedown request   |   View complete answer on smithsonianmag.com


What is a white black hole?

White holes are theoretical cosmic regions that function in the opposite way to black holes. Just as nothing can escape a black hole, nothing can enter a white hole. White holes were long thought to be a figment of general relativity born from the same equations as their collapsed star brethren, black holes.
Takedown request   |   View complete answer on space.com
Previous question
Is HPV contagious after clear?