Articles by

Jonathan OCallaghan

The Mystery of How Supermassive Black Holes Merge

The original version of this story appeared in Quanta Magazine.Galaxies have been merging into ever-bigger structures over...

The Hunt for Life on Europa Is About to Kick Up a Gear

If we’re going to find life on another world, Europa might just be our best bet. We...

Billionaire Finally Launches on First Private Space-Walk Mission

One of the most ambitious space tourism missions in history has launched, with the all-commercial crew set...

This Gargantuan Lab Simulates Blasting Satellites Into Space

Satellites go through a lot. As they hurtle around our planet at up to 17,000 miles an...

Starship’s Successful Test Moves SpaceX One Step Closer to Mars

SpaceX has completed a mostly successful fourth test of its revolutionary new Starship rocket, a key step...

Boeing’s Starliner Is Finally Ready to Launch a NASA Crew Into Space

At long last, Boeing’s Starliner spacecraft is ready to launch humans to space. Tonight, the vehicle is...