Will we ever set foot on Mars? | BBC Earth
50 years ago humans walked on the moon. Why haven't we walked on Mars?
NASA's Mars 2020 Will Blaze a Trail - for Humans
Perseverance Has Landed! Mars Rover Begins a New Era of Exploration - Scientific American
NASA's Next Giant Leap | NASA
Life on Mars? | Science| Smithsonian Magazine
Why Haven't Humans Reached Mars? | Astronomy.com
Can Humans Live on Mars? Here Who's Trying to Do It and What Are the Obstacles - Bloomberg
CE247D0C-194B-4386-AE41-53CE8087A1D4 – Mars Desert Research Station
Why Hasn't NASA Sent Anyone to Mars? - JSTOR Daily
What It Would Feel Like To Walk On Mars
Help is a long way away: The challenges of sending humans to Mars | CU Boulder Today | University of Colorado Boulder
NASA Just Left For Mars. Here's How Many Humans Will Be Needed To Colonize The Red Planet
Reaching for the red planet | News
Where Should Future Astronauts Land on Mars? Follow the Water – NASA Mars Exploration
Goodbye Mars One, The Fake Mission To Mars That Fooled The World
NASA: 'First Humans Who Will Step Foot On Mars Are Walking the Earth Today'
Trump has grand plan for mission to Mars but Nasa advises: cool your jets | Nasa | The Guardian
Will we be ready to put a human footprint on Mars in 15 years? | Mars | The Guardian
I took a trip to Mars in 2117 and it was exactly like 'Star Wars'
America has sent five rovers to Mars—when will humans follow?
Curious Kids: why can't we put people on Mars?
Walking on Mars: UC research helps astronauts take first steps | UnCover - The University of Canberra
Are Humans Really Headed To Mars Anytime Soon? | Colorado Public Radio
