The Zero Gravity Research Facility is NASA’s premier facility for ground based microgravity research, and the largest facility of its kind in the world. The Zero-G facility is one of two drop towers located at the NASA site in Brook Park, Ohio. The Zero-G facility has been operational since 1966.

In space where there is negligible gravity, the force on the object is virtually nil so the object, while still retaining its mass of 100 grams is now ‘weightless’.

In the strictest sense, the answer is no, there is no known way to “negate” the gravitational force because Gravity is universal: every (massive*) object creates a gravity field, and every object is evidently affected by a gravity field. That means you cannot (realistically, but see 8.

Our word gravity and its more precise derivative gravitation come from the Latin word gravitas, from gravis (heavy), which in turn comes from a still more ancient root word thought to have existed because of numerous cognates in related languages.

Many people seem to think NASA has secret training rooms in which gravity can be turned off. Aside from the long-running Anti Gravity column in Scientific American, however, there is no such thing as antigravity. As of yet, no technology exists to neutralize the pull of gravity.

Felber’spaper states that a mass moving faster than 57.7 percent of the speed of lightwill gravitationally repel other masses lying within a narrow ‘antigravitybeam’ in front of it. This “beam” intensifies as the speed of themass approaches that of light.

(B) An astronaut orbiting the Earth does feel weightless because there is no ground or normal force to counteract the force of gravity. Thus, the astronaut is falling. However, since the astronaut is also moving forward super fast, he/she continuously falls around the Earth rather than crashing into the Earth.

All matter in space is constantly falling down. Space is so big that this falling down motion is so slow that on an astronomical scale that we don’t notice it much. But it is definitely there.

Everything in space, including the International Space Station, is essentially in free fall, falling rapidly under the force of (almost) nothing but gravity. Lots of things can give satellites and other space objects tiny pushes in one direction or another. Even sunlight exerts physical force on objects it touches.

Has the universe a top and bottom? Our 4D universe does indeed have a top and bottom. The bottom (T=0) was the Big Bang. Space and time curved in, not to a point but to a parabola.

The sun’s gravity keeps Earth in orbit around it, keeping us at a comfortable distance to enjoy the sun’s light and warmth. It holds down our atmosphere and the air we need to breathe. Gravity is what holds our world together.

In the 1900s, Hungarian physicist Theodore von Kármán determined the boundary to be around 50 miles up, or roughly 80 kilometers above sea level. Today, though, the Kármán line is set at what NOAA calls “an imaginary boundary” that’s 62 miles up, or roughly a hundred kilometers above sea level.

Space is not empty. A point in outer space is filled with gas, dust, a wind of charged particles from the stars, light from stars, cosmic rays, radiation left over from the Big Bang, gravity, electric and magnetic fields, and neutrinos from nuclear reactions.

If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.

The technology required to travel between galaxies is far beyond humanity’s present capabilities, and currently only the subject of speculation, hypothesis, and science fiction. However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel is impossible.

Atoms are not mostly empty space because there is no such thing as purely empty space. Rather, space is filled with a wide variety of particles and fields. Even if we ignore every kind of field and particle except electrons, protons and neutrons, we find that atoms are still not empty.