Dave Eicher, Editor Emeritus of *Astronomy* magazine, encourages observers to locate Saturn, the solar system's sixth planet, in the evening sky. During this observational period, Saturn's typically ...

On November 18, observers are advised to look for Leonid meteors in the morning. Also on November 18, bright Venus (magnitude –3.9) will appear approximately 0.8° to the left of the 2.8 magnitude star ...

Observing the wonders of the night sky begins with selecting the right telescope. Join us on Nov. 20, 2025, at 9:00 am EST for Astronomy Unlocked: How to Choose Your Best Telescope. This virtual event ...

Astronomers have discovered a slew of stars lingering in the far fringes of our galaxy. And when we say far, we mean far. The most distant of these stars is located more than 1 million light-years ...

Despite the fact that Mars has an atmosphere just 1% as dense as Earth’s, the surface of the Red Planet still has to deal with plenty of weathering and erosion. In 2008, researchers even captured a ...

Saturn's moon Iapetus reaches western elongation, attaining approximately 10th magnitude and appearing 10 arcminutes west of the primary. Saturn, with an apparent magnitude of 0.8, is observable ...

The speed of light is a fundamental constant, approximately 299,792,458 meters per second. It's the same for all observers and hasn't changed measurably over billions of years. Nothing can travel ...

Black holes are regions of spacetime with gravity so strong that nothing escapes. Black holes grow by consuming nearby matter, slowing their eventual evaporation. Hawking radiation causes black holes ...

Apollo mission lunar samples provided crucial data, initially intended to test existing Moon formation theories (capture, co-formation, fission), but ultimately leading to the development of the Giant ...

3I/ATLAS is an interstellar object, originating outside our solar system. It's traveling much faster than previously observed interstellar objects. Scientists believe it may have formed in a different ...

October features significant planetary phenomena, including two transits of Titan across Saturn and recurring tandem transits of Io and Europa across Jupiter's disk, often with their shadows. The ...

The existence of "Planet Nine," a hypothetical planet in the outer solar system, is supported by indirect evidence such as the unusual clustering of orbits of extreme trans-Neptunian objects (ETNOs) ...