satellites

Researchers have accurately measured the height of the eruption plume from the undersea volcano that erupted in Tonga in January. The results confirm that it is the tallest of its kind ever recorded.

Declassified spy-satellite photos show that the glaciers near Mount Everest are shrinking more than expected.

Commercial and government satellites could be targets of the Russian military as it seeks advantage in Ukraine, the head of the U.S. National Reconnaissance Office said.

SpaceX has some nice before-and-after photos to mark the 10th launch of one of its Falcon 9 rockets, thanks to a satisfied customer.

From the number of bubbles in a typical glass of beer to the weight of all the coronavirus particles circulating in the world, here are 10 weird things scientists calculated in 2021.

The number of satellites orbiting Earth is skyrocketing, and this may be causing more problems than solutions in the long term.

Satellite parts that melt away during reentry reduce the risk of space debris impacts on Earth, a new video demonstrates.

Space junk moves at 10 times the speed of a bullet from an average gun.

Scientists recently calculated the power of so-called superbolts — brighter-than-average lightning strikes.

The U.S. government is putting something big and secret in orbit tonight (Sept 30). Here's the little we can glean from public information.