A new Chinese refueling spacecraft met up with an older satellite in high Earth orbit this month, apparently marking a step forward in orbital servicing.
Light streaks caused by passing satellites mar images taken by the world's most expensive telescopes. The problem is set to get worse.
In-orbit servicing and refueling could help curb the environmental harm done by the space industry. But will operators subscribe to the greener business model? The jury is out.
Research into the impacts of rocket and satellite air pollution is being cut by the Trump administration. Experts say the cuts come at the worst time.
U.S. President Donald Trump unveiled a plan for his ambitious "Golden Dome" missile defense shield this week, stating it will cost $175 billion and take some three years to develop.
Europe's Proba-3 satellites have demonstrated ultra-precise formation flying in orbit for the first time, a milestone with big implications for both science and future space missions.
The U.S. Space Force tested a new propulsion system designed for satellites that will keep tabs on spacecraft and other objects near the moon.
A new study has found that the 28 most populous cities in the United States — including New York, Chicago, Dallas and Denver — are sinking at rates between two and 10 millimeters (0.08 and 0.4 inches) per year.
A dramatic aircraft chase of a falling spacecraft has provided new insights into the fiery processes that accompany the atmospheric demise of retired satellites.
Long-forgotten mine fields in Cambodia are being revealed in decades-old, recently declassified images from U.S. military satellites.
