Space appears black because it is mostly empty, with very few particles to scatter or reflect light. When we look up at the night sky, we see darkness because there is no atmosphere to scatter sunlight and create a blue sky like we see during the day on Earth. Additionally, the vast distances between stars and galaxies mean that the light they emit has to travel a long way before reaching us, resulting in a dim and dark appearance. **

Outer space appears black because it is a vacuum, meaning there is no atmosphere to scatter or reflect light. When we look up at the night sky, we are essentially looking out into the vast emptiness of space where there are no particles to bounce light off of. This absence of light sources and scattering particles creates the illusion of darkness, making space appear black to our eyes. **

Space itself cannot "close" a black hole because a black hole is a region of space where the gravitational pull is so strong that nothing, not even light, can escape from it. The concept of "closing" a black hole is not applicable in the same way as closing a door or a hole in a wall. However, there are theoretical concepts such as Hawking radiation and black hole evaporation that suggest black holes can slowly lose mass and eventually "evaporate" over extremely long periods of time. But as of now, there is no known way to directly "close" a black hole. **

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. **

The black background in space is called the cosmic microwave background (CMB). It is the residual radiation left over from the Big Bang and is spread uniformly throughout the universe. The CMB is a key piece of evidence supporting the Big Bang theory and provides valuable insights into the early universe. **

As of now, there is no known black fungus specifically designed for space travel. However, there are various types of fungi that have been studied for their potential use in space, such as the black mold Aspergillus niger, which has been found to be resistant to the high levels of radiation and low gravity conditions in space. Research is ongoing to explore the potential use of fungi for space travel, including their ability to produce food, recycle waste, and even help with radiation protection. **

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. **

The defining moments of space exploration include the launch of the first artificial satellite, Sputnik 1, by the Soviet Union in 1957, which marked the beginning of the space age. The Apollo 11 mission in 1969, when humans first set foot on the moon, was another defining moment that captured the world's imagination. The launch of the Hubble Space Telescope in 1990 allowed us to see deep into the universe and revolutionized our understanding of space. More recently, the successful landing of the Mars rover Perseverance in 2021 has opened up new possibilities for exploring the red planet. **