![Haim Eshed, the former head of Israel's space security program, says aliens have built a secret underground base on Mars. Haim Eshed, the former head of Israel's space security program, says aliens have built a secret underground base on Mars.](https://compote.slate.com/images/199b0f87-a534-4ee5-9ff0-506c724f3389.jpeg?crop=3747%2C2498%2Cx245%2Cy358)
Haim Eshed, the former head of Israel's space security program, says aliens have built a secret underground base on Mars.
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Derinkuyu: The Ancient Underground City Big Enough for 20,000 People | Travel and Exploration | Discovery
![Allegedly, There Is a Secret Underground Alien Base in Dulce, New Mexico | Travel and Exploration | Discovery Allegedly, There Is a Secret Underground Alien Base in Dulce, New Mexico | Travel and Exploration | Discovery](https://discovery.sndimg.com/content/dam/images/discovery/editorial/podcasts/Curiosity/2020/3/Alien_Base_Christopher_Nicol_Wikimedia_Commons.jpg.rend.hgtvcom.476.476.suffix/1583103852656.jpeg)
Allegedly, There Is a Secret Underground Alien Base in Dulce, New Mexico | Travel and Exploration | Discovery
![The Dulce Wars: Underground Alien Bases and the Battle for Planet Earth - Kindle edition by Branton, Beckley, Timothy Green. Religion & Spirituality Kindle eBooks @ Amazon.com. The Dulce Wars: Underground Alien Bases and the Battle for Planet Earth - Kindle edition by Branton, Beckley, Timothy Green. Religion & Spirituality Kindle eBooks @ Amazon.com.](https://images-na.ssl-images-amazon.com/images/I/71UD7KxekAL._AC_UL600_SR600,600_.jpg)
The Dulce Wars: Underground Alien Bases and the Battle for Planet Earth - Kindle edition by Branton, Beckley, Timothy Green. Religion & Spirituality Kindle eBooks @ Amazon.com.
![Derinkuyu: The Ancient Underground City Big Enough for 20,000 People | Travel and Exploration | Discovery Derinkuyu: The Ancient Underground City Big Enough for 20,000 People | Travel and Exploration | Discovery](https://discovery.sndimg.com/content/dam/images/discovery/fullset/2019/9/29/0/komyvgory_%20iStock%20_Getty_Images_Plus.jpg.rend.hgtvcom.406.406.suffix/1569953327996.jpeg)
Derinkuyu: The Ancient Underground City Big Enough for 20,000 People | Travel and Exploration | Discovery
![Allegedly, There Is a Secret Underground Alien Base in Dulce, New Mexico | Travel and Exploration | Discovery Allegedly, There Is a Secret Underground Alien Base in Dulce, New Mexico | Travel and Exploration | Discovery](https://discovery.sndimg.com/content/dam/images/discovery/editorial/podcasts/Curiosity/2020/3/GettyImages-1160458124.jpg.rend.hgtvcom.406.406.suffix/1583103796774.jpeg)