The good news about massive black holes is that you could survive falling into one. Although their gravity is stronger, the stretching force is weaker than it would be with a small black hole and it would not kill you.

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.

Yes, It’s Possible to Safely Jump Into a Black Hole. But if you’re going to try it, you need to know this one small catch. Scientists say humans could indeed enter a black hole to study it. Of course, the human in question couldn’t report their findings—or ever come back.

A black hole would kill you by crushing you Imagine you’re falling feet-first towards a black hole. Gravitational forces are always stronger the closer you get to the object, but with a black hole, the difference is so noticeable that the force on your feet is much, much stronger than the force on your head.

This is the reason why light cannot escape a black hole. Another way to look at it is that the escape velocity from the event horizon of a black hole is faster than the speed of light. Since nothing can travel faster than the speed of light, nothing escapes the event horizon of a black hole.

Even light, the fastest-moving thing in our universe, cannot escape – hence the term “black hole.” The radial size of the event horizon depends on the mass of the respective black hole and is key for a person to survive falling into one. A person falling into a supermassive black hole would likely survive.

D Astrophysics, University of Leicester, said a 1mm black hole would still have a mass of 10 percent that of Earth. If it was to hover on Earth’s surface, its gravitational pull would cover a third of the planet, tearing it up at 12 kilometres per second.

Can a Black Hole Destroy Earth? Earth is facing no threat because no black hole is close enough to the solar system for our planet. According to NASA, even if a black hole the same mass as the sun replace the sun, Earth still would not fall in.

It is possible for two black holes to collide. Once they come so close that they cannot escape each other’s gravity, they will merge to become one bigger black hole. Such an event would be extremely violent.

Supermassive black holes are strange Its outer edge moves at half the speed of light. The good news about massive black holes is that you could survive falling into one. Although their gravity is stronger, the stretching force is weaker than it would be with a small black hole and it would not kill you.

If black holes evaporate under Hawking radiation, a solar mass black hole will evaporate over 1064 years which is vastly longer than the age of the universe. A supermassive black hole with a mass of 1011 (100 billion) M ☉ will evaporate in around 2×10100 years.

In space or on the Moon there is no atmosphere to scatter light. The light from the sun travels a straight line without scattering and all the colors stay together. Looking toward the sun we thus see a brilliant white light while looking away we would see only the darkness of empty space.

Space Is Dark, But Scientists Have Found Unexplained Light : NPR. Space Is Dark, But Scientists Have Found Unexplained Light Scientists have used a NASA probe way out in space, beyond Pluto, to measure visible light that’s not connected to any known source such as stars or galaxies.

Albert Einstein’s special theory of relativity famously dictates that no known object can travel faster than the speed of light in vacuum, which is 299,792 km/s. Unlike objects within space–time, space–time itself can bend, expand or warp at any speed.

Outer space is not completely empty—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays. Outer space does not begin at a definite altitude above the Earth’s surface.

The environment of space is lethal without appropriate protection: the greatest threat in the vacuum of space derives from the lack of oxygen and pressure, although temperature and radiation also pose risks. The effects of space exposure can result in ebullism, hypoxia, hypocapnia, and decompression sickness.

The lack of gravity in space makes some weird things happen to your body: molting feet, loss of posture, and incredible gassiness form the loss of abdominal muscle strength. Infections by space microbes can be common, if the living areas aren’t kept clean.

Everyday benefits of space exploration

• Improving health care.
• Protecting our planet and our environment.
• Creating scientific and technical jobs.
• Improving our day-to-day lives.
• Enhancing safety on Earth.
• Making scientific discoveries.
• Sparking youth’s interest in science.
• Cooperating with countries around the world.

These hazards—space radiation, altered gravity fields, isolation and confinement, closed environments, and distance from Earth—are linked with over 30 human health risks as documented by NASA’s Human Research Program.