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 ...

I wake up to a chime from my smartphone. Bleary-eyed, I check it — and jolt awake upon seeing an automated email from the MeerKAT radio telescope in South Africa. The subject line reads: “AT 2018xxx ...

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 ...

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 ...

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 ...

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 ...

The Giza pyramids' alignment with stars is debated; no definitive proof exists. Internal shafts in the Great Pyramid have an unclear purpose, possibly not for stargazing. The pyramids show ...

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 ...

The Milky Way and Andromeda galaxies will collide in about 4 billion years. Most stars will not collide due to vast distances between them. The galaxies' central black holes will eventually merge. Our ...