As more unidentified objects were shot down by the U.S. Air Force in recent days, experts warned that there were an “endless” array of potential targets.
Author: WILLIAM J. BROAD
J. Robert Oppenheimer Cleared of ‘Black Mark’ After 68 Years
The physicist and architect of the American atomic bomb was stripped of his security clearance in 1954 after what is now called a flawed investigation.
The Surprising Afterlife of Unwanted Atom Bombs
The Biden administration has called for the retirement of the B83 superweapon, but nuclear experts say its most destructive parts will live on indefinitely in one form or another.
How America Watches for a Nuclear Strike
Hundreds of satellites and spacecraft are keeping an eye on Russia’s nuclear forces from above. So far, they haven’t seen much to worry about.
The Smaller Bombs That Could Turn Ukraine Into a Nuclear War Zone
Military experts say a new generation of nuclear weapons has raised the risk that Mr. Putin might introduce less destructive atomic arms into the battlefields in and around Ukraine.
Many nuclear power reactors in Ukraine are no longer producing electricity.
Six of the 15 reactors in the country appear to be offline at the moment, with one site close to Russian troop movements reporting half of its reactors are down.
Chernobyl Plant Is Unharmed Despite Russian Invasion of Ukraine, Scientists Say
The nation’s 15 operating reactors have also been assessed as safe — at least for the moment.
If China Tested a New Orbital Weapon, It’s Not Much of a Surprise
Experts report that similar technologies were developed by Russia and the United States starting more than a half century ago.
If China Tested a New Orbital Weapon, It’s Not Much of a Surprise
Experts report that similar technologies were developed by Russia and the United States starting more than a half century ago.
This Chemist’s Pandemic Hobby? Firing Medieval Cannonballs.
Gunpowder used in cannons helped change the nature of warfare, but it took a while to get the recipe just right.