From its blood-like hue to its potential to sustain life, Mars has intrigued humankind for thousands of years. Learn how the red planet formed from gas and dust and what its polar ice 锦标 mean for life as we know it.
A 太空 storm has been observed exploding from a central point in Earth's upper atmosphere for the first time. The result could one 日 lead to better predictions of the storms, which can harm satellites and power grids on the ground.
