Our earth is going to experience unexpected heavy visitors in the next six weeks. The first satellite weighing approximately six tons, but now shred a lot of weight is expected in this month and any moment from now. And another now weighing around 400 Kgs could smash into the planet’s surface as early as the end of October.

The first satellite the Upper Atmosphere Research Satellite, or UARS, ran out of fuel in 2005 and could land on any of six continents. NASA says it could land at any point between 57 degrees north and 57 degrees south - which includes almost all the populated areas of our planet.

NASA estimates that there’s a 1 in 3,200 chance that pieces of the defunct satellite could hit someone when it plunges from orbit. It would be the first time in history someone was injured by space debris. This satellite is far smaller than the 135-ton Russian space station Mir, which fell to Earth in 2001 or the 100-ton Skylab that fell in 1979.

As per the second one, scientists believe a defunct German space telescope may collide with Earth less than five weeks after US satellite UARS hits the planet, the Telegraph reported. The 2.4-ton Rontgensatellit, or ROSAT, has been spinning aimlessly through space for 12 years after it was switched off in 1999 after its guidance system broke.

NASA experts have calculated that ROSAT is more than 50pc more likely to cause death, injury or property damage on Earth than UARS, although the chance is still 2,000 to one. UARS is heading for Earth in a potentially deadly shower of 26 pieces but there are estimated to be 30 chunks in the second strike next month.

And experts also warned that ROSAT would not be the last to hit because solar activity next year is likely to damage far more ageing spacecraft and send them plummeting to Earth. The reason why the location of the crash site is so hard to predict is because the density of the atmosphere varies so greatly higher up, producing different amounts of drag. A prediction that was wrong by even a few minutes would mean the satellite landing a huge distance away, owing to its speed.