The company that promised a one-way ticket to Mars is bankrupt

More than 100,000 want to go to Mars and not return, project says

Supersonic travel: Five decades of unrealized promises

Mars One goes bankrupt, ending private colonization project

Likened to the Fyre Festival, Mars One offered a one-way trip to Mars but is now bankrupt

Mars One space colonisation company declares bankruptcy

Couldn't SLS be replaced with Starship? Artemis already depends on Starship and a single Starship could fit multiple Orion crafts with ease - so why use SLS at all? : r/SpaceXLounge

Notorious Mars One 'Fyre festival in space' files goes bankrupt – and WON'T send humans to Mars by 2025

NASA Just Broke the 'Venus Curse': Here's What It Took - Scientific American

The case against Mars colonisation, Mars

Cosmic Radiation Forecast Could Be Bad for a Human Mars Mission - Bloomberg

List of crewed Mars mission plans - Wikipedia

Robert A. Heinlein: In Dialogue with His Century, Volume 2