Our information ecosystem has a litterbug problem. Help keep it clean and resist the urge to like and retweet things that have not been properly examined.

Thirty-five years ago today, America lost astronauts for the first time during a mission. As America rebuilds its human spaceflight program, we need to re-learn the lessons from Challenger and her sister ship, Columbia.

The events of January 6, 2021 in Washington D.C. echoed those of August 24, 410 in Rome, both for their contemporary symbolism and for the lessons that one can teach us about the other.

On the eve of Election Day, let's remember that no matter how dark or uncertain things look, we have it within us to prevail.

The COVID-19 Pandemic has similarities to challenges the world faced in 1918. Ravaged by war and weakened by cultural depression and political infighting, people still prevailed.

Looking back, the Apollo11 mission still seems like a nearly impossible feat, but all it took was the right combination of politics, money, courage and talent.

North Korea is a rogue nation that certainly does not deserve a pass for violating international norms and agreements. We can only do so much to influence Kim’s behavior or that of President Trump’s.

The international community of nations and the private sector will have to work closely to build the technical and political tools necessary to defend the planet.

Each year we mark the anniversary of D Day to honor the men and women who sacrificed so much to help prevent a new Dark Age of fascist terror, bigotry and ignorance.

Building an effective policy to meet the world’s challenges in space, including building a sustained human presence on Mars, is less about rockets and spacecraft and more about leadership and determination.