The Soviet Union launched Phobos 2 on July 12, 1988, the second of two uncrewed probes designed to study Mars, moons Phobos and Deimos, the Sun, and the interplanetary environment. Each probe was ...

Globular cluster M56 is a gorgeous object in Lyra the Lyre that anyone can observe with binoculars or a telescope.

Cones outnumber rods only in the center of the retina, which is the area of greatest density. It is also the area most ...

Kluger, who has written about the Apollo Program, talks about his new book: 'Gemini: Stepping Stone to the Moon, The Untold ...

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

Quasar 0957+561, the first known gravitationally lensed quasar, lies near NGC 3079 in Ursa Major. Here's how to find and ...

At a time of turmoil and competing visions for the agency, NASA will be led by a Trump administration cabinet member.

Algol, also known as the Demon Star, loses some 70 percent of its light every three days. It's in Perseus the Hero, now ...

Only a few dozen of these short-lived binaries exist in the galaxy at a time, making the serendipitous find extremely ...

Tonight's Full Moon, called the Bucky Moon, rises in the southeast and sets in the southwest, tracing a low path through the ...

Today in the history of astronomy, the most prolific comet-discoverer of all time gets his start.

Trump’s Big Beautiful Bill adds $9.9 billion to NASA’s budget, reversing plans to cut the Space Launch System and Orion.