No, one would not fall upwards without gravity. Gravity is the force that pulls objects towards each other, so without gravity, there would be no force pulling us in any direction. Therefore, without gravity, there would be no falling upwards or downwards. Objects would simply float in a straight line unless acted upon by another force. **

The reason why planets don't fall down in space when there is no gravity is because they are constantly moving in a straight line at a high speed. This movement creates a centrifugal force that counteracts the force of gravity, keeping the planets in their orbits. Additionally, the planets are also affected by the gravitational pull of the sun, which keeps them in their respective orbits. Overall, it is the combination of these forces that prevents the planets from falling down in space. **

The acceleration due to gravity during free fall is approximately 9.81 m/s^2. This means that an object in free fall will accelerate at a rate of 9.81 meters per second squared towards the Earth. This acceleration is constant and independent of the mass of the object. It is a fundamental constant in physics and plays a crucial role in understanding the motion of objects in free fall. **

Things in space don't fall to the ground because there is no gravity pulling them towards a specific surface. In space, objects are in a state of constant free fall around a larger celestial body, such as a planet or star. This is due to the absence of air resistance and the gravitational force of the larger celestial body, which causes objects to orbit rather than fall to the ground. Additionally, the concept of "down" or "ground" is relative in space, as there is no universal reference point for direction. **

Tesla's anti-gravity technology refers to the concept of using electromagnetic fields to counteract the effects of gravity on an object. This technology is based on the idea that by creating a powerful electromagnetic field around an object, it can be lifted or moved without the need for traditional propulsion methods. While there is speculation and theories surrounding Tesla's work on anti-gravity technology, there is no concrete evidence that he successfully developed a working anti-gravity device. **

No, Russia's space exploration is not at an end. While Russia has faced some challenges in its space program, such as budget constraints and technical issues, it continues to be an active player in space exploration. Russia has a long history of achievements in space, including being the first country to launch a satellite and send a human into space. The country is also involved in international collaborations, such as the International Space Station, and has plans for future missions to the moon and Mars. Therefore, Russia's space exploration is far from over. **

One popular PC game about space exploration is "Elite Dangerous." In this game, players can explore a realistic 1:1 scale open-world galaxy, trade goods, mine resources, engage in combat, and more. The game offers a vast and immersive experience for players interested in space exploration and simulation. "Elite Dangerous" has received positive reviews for its attention to detail and expansive gameplay options. **

Space probes are sent on exploration missions using powerful rockets that launch them into space. These rockets provide the necessary thrust to escape Earth's gravity and propel the probe towards its destination. Once in space, the probe's trajectory is carefully calculated to ensure it reaches its target planet or celestial body. The probe is equipped with various instruments and communication systems to collect data and send it back to Earth. **