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

Saturn reached opposition at 2 A.M. EDT, exhibiting high visibility throughout the night and presenting optimal viewing conditions for its rings and moons. Saturn's apparent magnitude was 0.6 in ...

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 ...

Alexander Friedmann (1888-1925), a Russian mathematician and meteorologist, made significant contributions to cosmology. Utilizing Einstein's general relativity, Friedmann's 1922 paper, "On the ...

Saturn's observation is optimal around 1 A.M. local daylight time, when it reaches its highest point (50° south) before morning twilight. Telescopic observation of Saturn reveals its ring system ...

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 ...

Blue Origin's NS-35 New Shepard mission, scheduled for Thursday, will conduct a dedicated research flight carrying over 40 payloads, including 24 student experiments from NASA's TechRise Student ...

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 ...

Luna 2, launched by the Soviet Union in September 1959, achieved the first human-made object impact on a celestial body other than Earth (the Moon). The mission's journey to the Moon lasted ...

Saturn, at magnitude 0.6 in Pisces, is observable in the southeast at approximately 30° altitude. Titan, Saturn's largest moon, undergoes an occultation behind Saturn, beginning around 11:10 P.M. EDT ...