Astronomy

The game-changing Vera C. Rubin Observatory will collect more astronomical data in its first year than all other telescopes combined

A curious celestial phenomenon known as the analemma is a reflection of Earth’s orbit and tilted axis

Scientists are rallying to reverse ruinous proposed cuts to both NASA and the National Science Foundation

Telescopes in space give us a view we literally cannot get from the ground

A new telescope project called the Next-Generation Very Large Array will revolutionize radio astronomy if it gets the funding it needs

Scientific American spoke with the astronomer who has contributed to the discovery of two thirds of Saturn’s known moons

The quirks of light moving through gas are the cause of stellar twinkling, which can be a bane—and sometimes a boon—for astronomers

NASA’s astrobiology ambitions are at risk of collapsing under the White House’s proposed budget. But your voice can make a difference

The sun has produced stunning auroras on Earth in recent years as solar activity has peaked—but expect more in coming years

Galaxies come in many shapes and sizes, and trying to define them is difficult

An enormous glowing cloud that contains approximately 3,400 solar masses worth of gas has been discovered near the solar system

Amazon has launched its first operational Project Kuiper satellites in its attempt to compete with SpaceX’s Starlink—but experts remain concerned about space debris and astronomy