Coronavirus reigns on Earth. But one day we might use 'solar gravity' lensing to see signs of life on distant exoplanets, perhaps looking back at us.
The video will likely answer any vaccine-related questions you may have ever had.
The practice could be used to treat memory-related disorders such as PTSD and drug addiction.
Written records of quarantine and isolation of the sick go as far back as Ancient Greek times and the Bible.