like a planetary collision, although they could be Dyson spheres — they are rare and interesting objects worthy of further ...
Dr. Franck Marchis, a senior planetary astronomer and director of Citizen Science at the SETI Institute, and Dr. Lauren Sgro, outreach manager for LaserSETI and astronomer at the SETI Institute, ...
Dyson spheres were first proposed by the physicist ... civilization would need to dismantle all the planets in 10,000 ...