What If on MSN
Aliens just visited Earth. Here’s what happens next
Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...
IFLScience on MSN
Want to travel to Mars without leaving Earth? NASA needs you!
NASA is recruiting volunteers for a year-long space simulation where they will undergo all the experiences associated with ...
The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...
Professor Carol Oliver suggests that time dilation, a cosmic phenomenon, may deter aliens from visiting Earth, as ...
Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...
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