According to NASA, a "Solar Tsunami" could hit Earth after a bout of violent space weather by a solar flare from the Sun. The solar "fireworks" were recorded by several satellites on the first of August, 2010. There was an explosion directly above one of the many sunspots on the surface of the Sun. The explosion was aimed directly towards Earth, which led to another even larger explosion across the surface of the Sun, which caused a "Solar Tsunami" flying across 150 million kilometres across space.
Experts said that the wave of supercharged gas was likely to reach Earth by as early as yesterday, and it will buffet the magnetic shield protecting Earth, which will likely cause displays of Aurora or northern lights and southern lights.
However, scientists say that big solar eruptions may destroy satellites or wreck power and communications grids across the globe. Previous reports say that in 2013, the Earth will be hit with high levels of magnetic energy from solar flares caused by explosions from the Sun. From there, the poles of the Earth will be able to see magnificent displays of Aurora.
Solar flares occur when immense magnetic structures in the solar atmosphere lose their stability and are unable to be held down by the Sun's gravitational pull. Just like a spring being released, the solar flare erupts into space. Here's a video of the solar flare that occurred three days back.