Lisa Kaltenegger
Where Aliens Could Be Watching Us
More than 1,700 stars could have seen Earth in the past 5,000 years.
Worlds Without End
Think we might eventually travel to other planets? In a way, we already are.
More than 1,700 stars could have seen Earth in the past 5,000 years.
Think we might eventually travel to other planets? In a way, we already are.
