The Free Software Foundation will be celebrating its 30th anniversary on Oct. 3rd. Recently, you had a chance to ask its founder Richard Stallman about GNU/Linux, free software, and other issues of public concern. Below you'll find his answers to your questions. Learn more about how you can join the FSF here, and help fight the good fight.

Last week you had the chance to ask electrical engineer and L5 society co-founder Keith Henson about space colonization, his solar power satellite project, and his run-ins with Scientology. Below you'll find his answers to your questions.

Tarek Loubani is an emergency medicine physician who works as a consultant doctor in the emergency departments in London, Canada and Shifa Hospital in Gaza. He is also an assistant professor at the Department of Medicine at the University of Western Ontario. Tarek has been working in Gaza for the past 5 years, where he made news recently by creating a 3D-printable, 30-cent stethoscope that is better than the world's best $200 equivalent. The need to develop free and open medical devices due to the lack of medical supplies resulting from the blockade, inspired Loubani who hopes the stethoscope is just the beginning of replacing expensive proprietary medical tools. Tarek has agreed to answer any questions you might have. As usual, ask as many as you'd like, but please, one question per post.

Keith Henson is an electrical engineer and writer on space engineering, space law, cryonics, and evolutionary psychology. He co-founded the L5 society in 1975, which sought to promote space colonization. In addition to being an outspoken critic and target of the Church of Scientology, Keith has recently been working on the design of an orbiting power satellite (video here). The proposed satellite would collect solar energy, send it to Earth via microwaves, and Henson has a plan on how to launch it cheaply. Keith has agreed to give us some of his time and answer any questions you might have. As usual, ask as many as you'd like, but please, one question per post.

A while ago you had the chance to ask Steve Jackson, founder and editor-in-chief of Steve Jackson Games, about the numerous games he's created, his efforts to digitize those games, and what to do when the Secret Service shows up at your office. Below you will find his answers to your questions.

Kim Dotcom was the founder of Megaupload, its successor Mega, and New Zealand's Internet Party. A while ago you had a chance to ask him about those things as well as the U.S. government charging him with criminal copyright violation and racketeering. Below you'll find his answers to your questions.

RMS founded the GNU Project, the Free Software Foundation, and remains one of the most important and outspoken advocates for software freedom. He now spends much of his time fighting excessive extension of copyright laws, digital restrictions management, and software patents. RMS has agreed to answer your questions about GNU/Linux, how GNU relates to Linux the kernel, free software, why he disagrees with the idea of open source, and other issues of public concern. As usual, ask as many as you'd like, but please, one question per post.

Recently you had a chance to ask animal behavior expert and autism advocate Dr. Temple Grandin a question. Below you'll find her answers about factory farming, animal behavior, and living with autism.

Recently the founder of the Mars Settlement Research Organization and author of The International Mars Research Station Shaun Moss agreed to sit down and answer any questions you had about space exploration and colonizing Mars. Below you will find his answers to your questions.

Last week you had a chance to ask the head of development at Giant Spacekat Brianna Wu about Gamergate, starting a company, and women-in-tech issues. Below you'll find her answers to your questions.

Being listed in the "Time 100" of the most influential people in the world in the "Heroes" category, is just one of the many awards received by Temple Grandin. Diagnosed with autism at the age of two, Temple overcame many obstacles and earned a doctoral degree in animal science from the University of Illinois at Urbana-Champaign and is a professor at Colorado State University. Dr, Grandin is recognized as an expert in animal behavior and one of the leading advocates for the rights of autistic persons. She lectures, and has written numerous books on animals and autism, and was the subject of the award-winning, biographical film, Temple Grandin . Dr. Grandin has agreed to take some time out of her schedule to answer any questions you may have. As usual, ask as many as you'd like, but please, one per post.

Brianna Wu is the head of development at Giant Spacekat, a company specializing in cinematic experiences using the Unreal engine. She’s also a frequent speaker on women-in-tech issues and was one of several women subjected to a campaign of attacks in Gamergate. Wu has worked as a journalist and politico. She currently has a patreon campaign which helps to offset the costs of doing speaking engagements and work to further the goals of feminism and women in tech. Brianna has agreed to give us some of her time and answer any questions you may have. As usual, ask as many as you'd like, but please, one per post.

samzenpus writes: Shaun Moss is a computer scientist with a 15-year passion for Mars. While reading Red Mars by Kim Stanley Robinson in 1999 Shaun realized that people would go to Mars in his lifetime, and he decided he wanted to be part of that. Since then he has been an active member of a variety of space enthusiast groups, including the Mars Society and Mars Society Australia. Shaun is also the founder of the Mars Settlement Research Organization. His research has included how to make air and steel on Mars, Martian timekeeping systems, terraforming and more, and he has given numerous presentations at conferences in Australia and the United States. For the past 1.5 years he has been developing a robust and affordable humans-to-Mars mission architecture and a plan to establish an International Mars Research Station, which is now available as a book. Shaun has agreed to answer any questions you may have. As usual, ask as many as you'd like, but please, one per post.

Last Thursday you had a chance to ask Linus Torvalds about programming, hardware, and all things Linux. You can read his answers to those questions below. If you'd like to see what he had to say the last time we sat down with him, you can do so here.

A few weeks ago you had a chance to ask Brian Krebs about security, cybercrime and what it's like to be the victim of Swatting. Below you will find his answers to your questions.

Since starting his own company in 1980, Steve Jackson, founder and editor-in-chief of Steve Jackson Games, has created a number of hits, starting with Car Wars . . . followed shortly by Illuminati, and later by GURPS, the "Generic Universal Roleplaying System." In 1983, he was elected to the Adventure Gaming Hall of Fame - the youngest person ever so honored. He has personally won 11 Origins Awards. In the early 90's, Steve got international press due to the Secret Service's invasion of his office. The EFF helped make it possible for SJ Games to bring suit against the Secret Service and the U.S. government and win more than $50,000 in damages. His Ogre kickstarter a couple of years ago brought in close to a million dollars. His current hits are Munchkin, a very silly card game about killing monsters and taking their stuff, and Zombie Dice, in which you eat brains and try not to get shotgunned. His current projects include a variety of Munchkin follow-ups, and the continuing quest to get his games translated into digital form. Steve has agreed to put down the dice and answer any questions you may have. As usual, ask as many as you'd like, but please, one per post.

samzenpus writes: Linus Torvalds, the man behind the development of the Linux kernel, needs no introduction to Slashdot readers. Recently, we talked about his opinion on C++, and he talked about the future of Linux when he's gone. It's been a while since we sat down with Linus to ask him questions, so he's agreed to do it again and answer any you may have. Ask as many questions as you'd like, but please keep them to one per post.

Brian Krebs got his start as a reporter at The Washington Post and after having his entire network taken down by the Lion Worm, crime and cybersecurity became his focus. In 2005, Krebs started the Security Fix blog and Krebs On Security in 2009, which remains one of the most popular sources of cybercrime and security news. Brian is credited with being the first journalist to report on Stuxnet and one of his investigative series on the McColo botnet is estimated to have led to a 40-70% decline in junk e-mail sent worldwide. Unfortunately for Krebs, he's also well known to criminals. In 2013 he became one of the first journalists to be a victim of Swatting and a few months later a package of heroin was delivered to his home. Brian has agreed to give us some of his time and answer any questions you may have about crime and cybersecurity. As usual, ask as many as you'd like, but please, one per post.

He was the founder of Megaupload, its successor Mega, New Zealand's Internet Party, and is the world's greatest Modern Warfare 3 player. He was born Kim Schmitz, but you know him better as Kim Dotcom. While he's had a number of run-ins with the law over the years, The U.S. government is currently charging him with criminal copyright violation and racketeering in association with his Megaupload site. Dotcom has recently won a court battle in New Zealand blocking the U.S. from seizing $67 million in assets. Even though he has a lot on his plate, Kim has agreed to take some time to answer any questions you may have. As usual, ask as many as you'd like, but please, one per post.

Pam Fletcher was propulsion system chief engineer on the first Chevrolet Volt plug-in hybrid and is now executive chief engineer for electrified vehicles at GM, overseeing electrified vehicles company-wide. A while ago you had a chance to ask about her work and the future of electric cars. Below you'll find her answers to your questions.