My 8th book will be on Amazon on 9/4. The Transition World tells of four astronauts who return from a 3-year tour on Mars to find the population and infrastructure decimated by a pandemic. They have to adapt and find meaning in a home vastly different from the one they left.

Saturday #2 on Amazon for Historical AND Mystery and Suspense Fiction! AND FREE today! Island Fever anthology Pick up your copy here: amzn.to/3CZ7g9v

If Pigs Could Cry, my 2014 novel, is about DNA-altered pigs who are being cloned for use as human heart donors. Nice when what you predict comes true. See bit.ly/1gZx5Tp

Pretty cool. Not something most of us get to experience, unfortunately

With all the space junk circling the earth, I'm surprised this doesn't happen more often.

Everyone should wait tables for a few years. It builds character. As an ex-waiter for five years, I second this recommendation. Tip generously and reward great service appropriately

Another amazing adventure begun by @NASA. I'll be following closely for the next few years.

Amazing news about the polar lake on #Mars. How many more are there? It's not surprising that there's underground water, but can settlers dig wells? If so, how deep do they have to go? #Marswater #IAN1

Last day to get Tale of Two Planets for free from Amazon. It's at amzn.to/1bbMfR5 . Join 450 others who have taken advantage of the deal. #AIN1 #Mars

Over 400 people have taken advantage of the giveaway of Tale of Two Planets so far. It's still going, until the 26th. See amzn.to/1bbMfR5. I won't give it away again for a couple years. Now's the time.

Sometimes an author has to hope that his book doesn't become too prophetic. With lava bombing a boat off of #Kilauea, and a lava river flowing into the ocean off Hawaii, the scenario is eerily similar to Fire at the Bottom of the Sea. bit.ly/2EusVpu . #IAN1 #THRILLERS

A reminder. Tomorrow begins the Amazon giveaway for Tale of Two Planets. Get the Kindle version for free from July 22-26. See amzn.to/1bbMfR5 . #IAN1, #Mars, #Thriller

Don't forget. Tale of Two Planets is free in kindle format from Amazon from July 22-26. #Mars #IAN3. See amzn.to/1bbMfR5

I attended taping of NPR's #sciencefriday last week and spoke to both Ira Flatow and Dr. Kim Binsted, who heads the #HISEAS Mars simulation project on Hawaii's Big Island. Interesting how the human aspects of going to Mars are finally getting the attention they deserve.

As a promotion, Tale of Two Planets will be available for free from Amazon from July 22-26. See amzn.to/1bbMfR5. #IAN3 #thriller #mars

We in Honolulu are following the #Kilauea volcano activity on the Big Island with intense interest. Many friends over there, including ones who have been cut off from their homes. So far, only some vog on Oahu. Best wishes & sympathy to those in need.

Two days left to get Fire at the Bottom of the Sea free. See amzn.to/2qcbwPa #IAN1 #Thriller #Submarines. Sale runs March 17-22

Three days left to get Fire at the Bottom of the Sea free from Amazon. See amzn.to/2qcbwPa. #IAN1