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 ...
The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...
For over six decades, the Search for Extraterrestrial Intelligence (SETI) has been tirelessly scanning the cosmos for signs of alien life. Despite its extensive efforts, the universe remains eerily ...
In fact, polls in Australia, the US and elsewhere indicate around a third of the public believes aliens are here. However, while what we know about the universe suggests aliens may exist, there are ...
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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