The Moon, Venus, Spica, and Mercury now all stand in a line tonight, but only if you’re quick — Mercury sets soon after the ...

Bars can form in any galaxy with ordered rotation; it is primarily the quantity of dark matter that controls whether a bar is present.

Three celestial objects form a triangle in the evening twilight as Venus and the crescent Moon hang with Virgo’s brightest ...

Dione crosses Saturn’s north pole, projecting its shadow onto the cloud tops as Tethys disappears into the planet’s shadow.

Dark-sky sights take center stage as Saturn's moons dance and Venus mingles with the Moon in the sky this week.

Now in Cancer, our waning Moon hangs close to Jupiter. The gas giant is a great telescopic target, with cloud patterns and ...

Reid Wiseman, Victor Glover and Jeremy Hansen will join Starmus VIII in Tenerife and La Palma, continuing a remarkable ...

Neptune is at its best for the year, while Mars and Jupiter dominate the morning sky and Venus shines brightly after sunset.

Spiral NGC 7331 dominates a group of five galaxies in Pegasus, perfect for observing in tonight’s moonless skies.

SpaceX to send up a U.S. Space Force national security mission from California along with the final three satellites in a ...

Earth's satellite skims through several constellations, meeting up with planets and stars in the sky this week.