Blue Origin fired a senior executive, citing inappropriate behavior. Current and former employees say it’s part of the company’s toxic culture.

In an essay released on Thursday, Alexandra Abrams, the former head of Blue Origin employee communications, wrote that the spaceflight company’s “culture sits on a foundation that ignores the plight of our planet, turns a blind eye to sexism, is not sufficiently attuned to safety concerns, and silences those who seek to correct wrongs.” The essay was posted to the whistleblowing site Lioness, which publishes stories of workplace misconduct and places them with media outlets. Abrams post cited 20 anonymous current and former employees.