On September 22, our satellite passes in front of the famous star cluster M45 in a rare, breathtaking event, producing ...

Neptune reaches opposition today at 8 P.M. EDT in the constellation Pisces. Opposition is generally the best time to view ...

Our Earth is about 4.5 billion years old and, through careful work, scientists have pieced together a timeline of its past.

When we think of color in the night sky, we often think of beautiful images of galaxies and nebulae. Unfortunately, most of ...

The plumes stretch farther than any yet seen, reaching millions of light-years long and potentially influencing the cosmos ...

A famous radio signal from space long considered as a possible sign of another civilization, in the end, falls flat.

On Tuesday evening, the Full Harvest Moon — also a Super Moon — undergoes a partial lunar eclipse visible across the U.S.

Astronomers have long investigated the effects of totality on animals, leaving one to wonder just what aspects trigger ...

If Earth had no air, the Moon would disappear during totality. But it does, so some sunlight is scattered into Earth’s shadow ...

In this remarkable age, space is becoming ever more accessible to the general public, and citizen scientists are enriching the field of professional astronomy with their contributions. NASA’s ...

Photons are indeed massless, but they still travel through our universe. You can picture the fabric of the cosmos as a sort of grid — one that is four-dimensional and incorporates not only the ...

UPDATE 9/10/2024: The Polaris Dawn mission successfully launched to low-Earth orbit aboard a SpaceX Falcon 9 rocket on Sept. 10 at 5:23 a.m. EDT. The crew’s first opportunity for their historic ...