Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

The Helix Nebula is one of the most well-known and commonly photographed planetary nebulae because it resembles the “ Eye of ...

Stargazers are about to have a chance to spot Saturn and the moon sharing a section of the night sky in what's known as a ...

Astronomers are tracking a rare interstellar object traveling at record speeds and passing unusually close to multiple ...

Using the Hubble Space Telescope, astronomers have witnessed an infant star 20 times larger than the sun setting interstellar ...

In the bigger picture, "down" could be defined as being below the plane of the solar system, which is known as the ecliptic.

Known as dinosaur stars for both their primeval nature and their immense size, Population III stars existed only when the ...

New polarimetry data on interstellar comet 3I/ATLAS reveals bizarre refractory dust, proving this alien visitor formed in a ...

A famous night-sky object has yielded a surprise: a narrow, bar-shaped cloud made of highly ionized iron. The discovery comes ...

I have been writing about the Giant Magellan Telescope for a long time. Nearly two decades ago, for example, I wrote that ...

The Hubble Space Telescope has captured startling structures on interstellar comet 3I/ATLAS, narrow, sun-facing dust streams ...

A newly spotted feature inside a dying star’s remains is unsettling scientists, not because it is dramatic, but because it ...