The "new stars" are best seen from the Southern Hemisphere, but people have spotted them from the United States by looking ...

Mercury will reach its greatest eastern elongation, marking the point where it is farthest from the Sun in the evening sky.

Less than two weeks later, on June 25, reports began to circulate of a second nova blossoming in the southern night sky, this ...

And astronomers have a brand-new, superpowerful eye with which to see the changing cosmos: the Vera C. Rubin Observatory in Chile. The Rubin Observatory released its first images last week, and ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

L3Harris in Rochester played a pivotal role in building the Vera C. Rubin Observatory’s massive secondary mirror.

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

Rocket Lab Corp. announced plans to acquire Geost, an electro-optical and infrared payload development firm, from Lightridge ...

A new generation of black hole research is unfolding thanks to artificial intelligence, massive simulations, and cutting-edge ...

Skywatchers can catch a rare conjunction of the moon and Mars on June 29, appearing as a reddish "cherry" near a crescent ...

The Event Horizon Telescope has captured an image of a ring of light around the Black Abyss, a black hole about 55 million light years away.

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...