On a tranquil summer evening, just as the sun dips below the horizon and darkness begins to settle, an ethereal spectacle ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

Right after launching, a bunch of satellites heading to join the megaconstellation looks like a string of moving stars going ...

Clouds are more than just fluffy cotton balls floating in the sky ... the planet. Without them, the Earth could potentially overheat. They also act as a blanket, trapping heat at night to keep ...

Measuring light, known as the cosmic microwave background (CMB), that traveled ... the complex cosmic structures that we see in the night sky and our own planet too. "We've been able to measure ...

The festival's first weekend wrapped Sunday with a star-studded performance from Megan Thee Stallion, a solo turn from ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

It’s January 21, the day after Donald Trump’s inauguration, and a Ukrainian Army drone unit is on a reconnaissance mission on ...

A whole universe of hidden galaxies lies just beyond what the eye can see. Thanks to a new generation of space telescopes, ...

Without question, the month of April belongs ... while mired in bright twilight. Related: Night sky, April 2025: What you can see tonight [maps] Read more: Best telescopes for seeing planets ...

From speeding galaxies to ancient gas clouds ... telescope shows the whole sky filled with a glow, day and night. This glow is called the Cosmic Microwave Background. This is one of the most ...