Roundtrip Interstellar Travel Using Laser-Pushed Lightsails https://ia800108.us....

		floxy 4 months ago \| parent \| context \| favorite \| on: Analysis indicates that the universe’s expansion i... Roundtrip Interstellar Travel Using Laser-Pushed Lightsails https://ia800108.us.archive.org/view_archive.php?archive=/24... "The third mission uses a three-stage sail for a roundtrip manned exploration of Eridani at 10.8 light years distance."