Claude-Louis Mathieu, born in Macon, France, in 1783, demonstrated an early aptitude for mathematics, overcoming familial and financial obstacles to graduate from the Ecole Polytechnique in 1805. His ...

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 ...

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 ...

Several planets, including Mercury, Mars, Venus, Uranus, Neptune, Saturn, and Jupiter, are visible this month. Saturn's moon Titan will cast its shadow on Saturn twice during July. Neptune will be ...

The origin of Earth's water is a long-standing scientific question, with differing isotopic ratios of deuterium to hydrogen (D/H) in Earth's oceans compared to the early solar system suggesting ...

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 ...

‘Oumuamua, the first interstellar object detected within our solar system, exhibited unusual characteristics including an extreme shape and non-gravitational acceleration, prompting diverse hypotheses ...

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 ...

Primordial nucleosynthesis during the early universe generated hydrogen, helium, and minor lithium-7 before the cosmos cooled, halting further fusion. Stellar interiors synthesize elements up to iron ...

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 ...