A drop in the solar wind of a kind never yet seen in the space age has made travel beyond Earth orbit a lot more dangerous, according to boffins – so much so that a manned mission to Mars may not be feasible for many decades. "The behavior of the sun …
For more than 40 years, missions throughout the solar system ave sent back stunning images of our home planet In 1990 the NASA spacecraft Voyager 1, careening across the solar system on its way to becoming the most distant human-made object in space, took a glimpse back at the planet …
