Macquarie University astronomers have tracked an extreme planet's orbital decay, confirming it is spiraling toward its star in a cosmic death dance that could end in three possible ways.

Discover 3I/ATLAS, an interstellar comet with a reddish hue, rich in water ice, and possibly predating the solar system.

A giant exoplanet has just been confirmed about 400 light-years from Earth. Named TOI-4465 b, it stands out with a mass six times greater than Jupiter's and unusual orbital characteristics.

Based on the comet's brightness and current distance — it's located just inside Jupiter's orbit — scientists estimate its ...

With an estimated 100 trillion stars, this massive elliptical galaxy dwarfs the Milky Way, Andromeda, and nearly every other known galaxy in the cosmos. But what makes IC 1101 so unique?

A collision between our Milky Way galaxy and the neighboring Andromeda galaxy, long considered inevitable, may be in question, astronomers say.

When NASA 's Hubble Space Telescope snapped a picture of an elliptical galaxy, it caught something else in the frame: A bright, red arc of light wrapped around it. That glowing curve isn't the ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

Discover our city guide to Jupiter, Florida. Uncover top things to do, enjoy waterfront dining, and dive into the unique history of Jupiter ...

Here we see light from a distant galaxy following the curve of spacetime created by the elliptical galaxy's mass.

The new findings beg the question of how reliable such interpretations can be if elliptical galaxies account for at least 1.4 percent of the total measured radiation previously attributed to the CMB.

Galaxies come in many different variations, but astronomers classify them into four main types: spiral, elliptical, irregular and peculiar.