Private group wants to launch "cheapest possible" mission to Alpha Centauri

"We could really be facing the great filter." https://arstechnica.com/space/2026/09/private-group-wants-to-launch-cheapest-possible-mission-to-alpha-centauri/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social