Successful astronomical observing sessions are significantly enhanced by pre-planning an observing list, ideally sorted geographically (west to east) to optimize viewing flow. Observers are advised to ...

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 ...

The Big Dipper, an asterism within the Ursa Major constellation, is readily observable from mid-to-high northern latitudes and its appearance varies throughout the year due to Earth's orbit and ...

Interstellar Comet 3I/ATLAS will reach perihelion, its closest approach to the Sun, on October 30, 2025, marking the climax of its brief, hyperbolic trajectory through our solar system before its ...

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 ...

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 ...

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 ...

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 ...

On November 13, Titan will undergo an occultation egress from behind Saturn's disk. This phenomenon will begin at 7:26 p.m. EST, occurring in darkness for observers in the eastern U.S. and during ...

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 ...

The Kepler Space Telescope, launched in 2009, successfully employed the transit method to search for exoplanets, ultimately observing over 500,000 stars and contributing to the discovery of almost ...

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 ...