Never-before-seen colossal comet on a trek toward the sun

Scientists have identified 2,034 nearby star-systems in the Earth Transit Zone, a sliver of the sky where it would be possible to identify the Earth by observing it cross in front of our sun.

Aliens could have spotted Earth cross the sun from more than 1,700 star systems

Any aliens orbiting these 2,000 stars could spot Earth crossing the sun