In February 2025, conditions were just right to catch a "planetary party" above the European Southern Observatory's (ESO) ...

Meganne Christian describes what it's like to undergo her first block of astronaut training at the European Astronaut Centre in Cologne, Germany.

On Oct. 1, 1847, at age 29, Maria Mitchell, a studious and sturdy Quaker who, as a child, began sweeping the sky above ...

Residents in Tampa Bay were confounded after seeing what seemed to be an explosion in the sky around Thursday’s sunset.

Here is a list of galaxies that are known in this universe other than your Milky Way galaxy. It is a spiral galaxy approximately 2.5 million light-years from Earth and the nearest major galaxy to the ...

Feb. 27, 2025 — Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full Moon.

Read Showing a large portion of M66, this Hubble photo is a composite of images obtained at visible and infrared wavelengths.

A comet called ATLAS dazzled the southern skies for the last few weeks. Now it's heading out of view for half a million years ...

G3 (ATLAS), the 'Great Comet of 2025,' lit up the night sky in Chile, offering a rare and breathtaking sight for stargazers, ...

Astronomers have captured a rare final glimpse of Comet C/2024 G3 (ATLAS) before it vanishes for half a million years.

Beautifully captured against a starry sky, Comet C/2024 G3 (ATLAS) — dubbed by some as the "Great Comet of 2025" — shines ...

T Coronae Borealis (T CrB), popularly known as the "Blaze Star," is surely on the verge of a rare and dramatic brightening.