Scientists expect the sun to burn for another 5 billion years. However, just because the sun continues to burn does not mean that Earth necessarily remains habitable.
Scientists of astronomy believe that after 2 to 3 billion more years, the sun's radiation has the potential to increase so dramatically that it ends life on planet Earth. Five billion years from now, the sun's hydrogen core may be depleted, causing the sun to expand greatly as a Red Giant. From that point on, it could engulf the planets all the way up to Mars before continuing its multiple-billion year death. After this, the bloated sun may collapse into itself as a White Dwarf that is roughly the size of Earth.Learn More
According to Universe Today, the surface gravity of the sun is 27.94 g, about 27.9 times stronger than the surface gravity of the Earth. The more mass an object has, the larger its gravitational pull. Since the sun is such a huge mass that makes up 99.86% of the mass of the Solar System and has a mass over 330,000 times that of Earth, it has a lot of gravity.Full Answer >
Black objects do not attract sunlight, per se, but instead absorb rather than reflect light. Light absorbs changes from light energy to heat energy, causing black objects to become hotter in sunlight than more reflective objects.Full Answer >
The three layers of the sun's atmosphere are the chromosphere, the transition layer and the corona. The corona is both the outer layer and the hottest layer of the atmosphere, as it can reach 2 million degrees Fahrenheit.Full Answer >
Sunlight is one of the two most important climatic factors for ecosystems, according to experts from the University of Illinois Extension. Exposure to sunlight also helps humans synthesize vitamin D, which helps the muscular, skeletal and nervous systems work properly.Full Answer >