Space News & Blog Articles

Helen Sawyer Hogg stood at the front of a small but growing force of woman astronomers in the first half of the 20th century. This is her story.

Astronomers can see hot gas boiling on the surface of the giant star R Doradus, 180 light-years away.

September's partial lunar eclipse will be the first and only time the Moon ducks into Earth's umbral shadow in 2024. The Moon also occults Saturn and hides members of the Pleiades this month.

Astronomers and Starlink engineers have developed a technique to significantly reduce satellite radio pollution affecting astronomical observations.

For decades, scientists have wondered what accelerates solar wind particles as they move away from the Sun. New evidence points to magnetic switchbacks.

Webb Telescope data are still turning up more massive galaxies in the early universe than astronomers expect.

The waxing Moon steps along nightly this week, from low in the western twilight with Venus and Spica over to Antares and then the Sagittarius Teapot. Meanwhile, the recurrent nova T Corona Borealis is keeping us waiting.

The BepiColombo mission has completed its fourth and closest pass yet of Mercury, giving us brand-new views of the planet's south pole region.

Astronomers may have finally solved the mystery of how dark space really is.

Billions of years ago, the close pass of another star might have sculpted the outer regions of our solar system.

A penumbral lunar eclipse is coming on September 17th, and that little shadow is something to look forward to.

A supermassive black hole has twice now grabbed gas from a passing star — and astronomers predict a third chance will come in early 2025.

Let’s go on a night-sky tour of the stars and planets that you’ll see overhead during August. Find a good seat for some great “shooting stars,” watch Saturn climb in the eastern sky in early evening, check out the summer's brightest stars, and start looking for a once-in-your-lifetime star blast. 

Low in twilight, climbing Venus and descending Spica prepare to pass each other. After dark Vega crosses the zenith, and Scorpius beds down. Mercury shines at dawn.

Last month, astronomers discovered a giant black hole in Omega Centauri. But it might contain a swarm of stellar-mass black holes instead.

Did you know you can see the International Space Station even when it's in Earth's shadow? We explore possible reasons why.

New data from an array of telescopes has enabled astronomers to visualize the surface of the North Star, Polaris.

The worldwide network of radio dishes has achieved the highest resolution ever obtained from Earth’s surface.

Amateur astronomers have shown that the first satellites of the Chinese Qianfan (“Thousand Sails”) constellation are bright enough to be seen naked-eye.

New James Webb Space Telescope observations may have done with one of the longest-standing tensions in cosmology.

We're in peak Milky Way season, and the evenings have become dark and moonless. Andromegasus is up. So is Saturn. Before dawn, the late-risen Moon passes over Jupiter and Mars.