Astronomers use many methods to determine this number, including gravitational lensing, the universe’s expansion rate, and ...

On a specified date, the Moon will pass 0.8° north of Venus and 1.3° north of Regulus (magnitude 1.4), with Venus and Regulus separated by less than 0.5°. This celestial trio will rise around 4:30 A.M ...

NGC 457, also known as the Owl Cluster, is readily observable with binoculars or telescopes in the evening sky. Located approximately 2.1° southwest of Delta Cassiopeiae, it is easily identified near ...

The 9mm Nagler Type 7 eyepiece offers a mix of sharpness and correction for deep-sky objects. This new eyepiece presents an 82° apparent field of view. It is designed with comfort in mind for eyeglass ...

Data from NASA's Dawn mission, analyzed via thermal and chemical models, suggests Ceres possessed a long-lasting internal heat source driven by radioactive element decay. This heat source, reaching ...

September offers various celestial events, including Saturn and Neptune's oppositions, Mars's approach to solar conjunction, and favorable viewing of Uranus and Jupiter. Multiple transits of Saturn's ...

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) ...

The universe began with an unimaginably hot, dense state. Inflation rapidly expanded the universe's size. Before inflation, the universe existed in a period called the GUT era where forces were ...

Shocked quartz, indicative of extreme pressure and temperature, was discovered at three prominent Clovis culture archaeological sites (Murray Springs, Blackwater Draw, Arlington Canyon). The presence ...

Use the Big Dipper to locate Polaris, the North Star. Orion's belt helps find other bright stars like Sirius. Follow the Big Dipper's handle to find Arcturus and Spica. The Summer Triangle is formed ...

Nabta Playa, located in Africa, is the oldest known stone circle, predating Stonehenge by over 2,000 years, and is considered a potential early astronomical observatory, aligned with stars such as ...

Stonehenge has always been shrouded in mystery. The ancient monument and burial site in southern England has been around for more than 5,000 years — but its purpose isn’t completely clear. Researchers ...