3 ms·
"Oumuamua is now about 2 astronomical units (AU) away... At this distance, it would take under a minute for the Green Bank instrument to detect an omnidirection
by jdnier 9y ago
"Oumuamua is now about 2 astronomical units (AU) away... At this distance, it would take under a minute for the Green Bank instrument to detect an omnidirectional transmitter with the power of a cellphone."
That's pretty impressive.