Speculative alien messages raise unsettling possibilities about cosmic survival, warning that advanced civilizations may ...

Astronomers estimate there could be a trillion planets in our galaxy, yet no confirmed signs of alien civilizations. The talk explores why advanced life might be far rarer than expected. It breaks the ...

The second reason is simple: location, location, location! The millisecond pulsar appears to be near Sagittarius A*, the supermassive black hole at the center of our galaxy. Sagittarius A* weighs ...