A new paper from Harvard's sometimes controversial physicist Avi Loeb has suggested that if we want to find advanced alien ...

Sustainability may be an unavoidable feature of advanced civilizations, making advanced technology “indistinguishable from ...

Perhaps we haven't encountered alien civilizations because there's a "universal limit to technological development" (ULTD) for every intelligent species in the universe and this limit sits well ...

You've been magically transported to a room and given three choices. Choice 1: You can know the details of three different alien civilizations. These are civilizations that have (or had) reached ...

An advanced alien civilization could no doubt have a good guess at our particular phase of industrialization and our energy consumption. On Earth, we use the Kardashev scale for estimating the ...

Alien Civilizations May Be Trapped on Their Home Worlds. by Victor Tangermann. 3.2.24, 8:30 AM EST. Getty Images. Physical limitations may stop them from leaving their planets. Planet Bound.

Don’t bother wondering if alien civilizations can hear our radio broadcasts or not. According to a new study, sufficiently advanced aliens can already see us. The research, set to be published ...

Perhaps we haven't encountered alien civilizations because there's a "universal limit to technological development" (ULTD) for every intelligent species in the universe and this limit sits well ...