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 ...

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 ...

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 ...

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 ...

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 ...

August 22nd: The Swan Nebula (M17) reaches its highest point around 11 PM local daylight time, observable with binoculars or telescopes in northwestern Sagittarius. August 23rd: A New Moon, termed a ...

Manual cardiopulmonary resuscitation (CPR) techniques, including the "handstand" method, are ineffective in microgravity due to the lack of a counter-force to compression, resulting in insufficient ...

Sound needs a medium (solid, liquid, or gas) to travel. Space is a vacuum, lacking the matter to carry sound waves. No sound in space means no echoes. While a near-perfect vacuum, some sounds can be ...

Temperature is a measure of the average energy of a collection of particles. (This is in contrast to kinetic energy, which is a measure of the energy carried by a single particle.) So, to answer a ...

A close conjunction of the waning crescent Moon (approximately 26% illuminated) and Jupiter occurred around 7 A.M. EDT, observable in the eastern sky before sunrise, with the Moon positioned between ...