A team of scientists says it's possible to use tiny ripples in space and time, or gravitational waves, to measure the rate at ...

NASA's Chandra X-ray Observatory has transformed new views of Jupiter, Saturn and Uranus into immersive soundscapes, turning planetary data into audio you can hear.

The sun reaches the March equinox at 5:01 a.m. Eastern Daylight Time on March 20. This is when it crosses the equator heading northward. This moment marks the change of seasons: the beginning of ...

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

NASA's Hubble telescope has circled our planet in a low-Earth orbit for decades. But how much longer has become increasingly uncertain.

In late February, people in the Northern Hemisphere can look up for a special sight: six planets will all be visible from clear and dark night skies. New sonifications from NASA’s Chandra X-ray ...

Hubble Space Telescope imagery created an HD look at the gas giant planet Jupiter. Credit: NASA Goddard Space Flight Center ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

Six planets will line up in late February 2026, and NASA’s Chandra X-ray Observatory has turned three of them into sound. What does Jupiter, Saturn and Uranus actually “sound” like in space?

February is ending with a bang as six planets align in the night sky on Saturday. Mercury, Venus, Jupiter, Saturn, Uranus and Neptune will all be visible in the evening sky on Saturday, but you might ...

Water ice on Mars, bubbling gas on a distant star, a snow-covered island, and a pre-planetary nebula are featured this week. Plus, a look back at an image of Mars taken by the Dawn spacecraft during a ...