science-astronomy

The Halloween Moon is the full moon that occurs closest to October 31. Because the lunar month is about 29.5 days and calendar months vary, this full moon can fall on Halloween...

Apophis will make a close Earth approach in 2029, passing inside the orbit of geosynchronous satellites and becoming bright enough for naked-eye viewing. This evergreen explaine...

Earth rotates from west to east, so the Sun, Moon, and stars appear to rise in the east and set in the west. This eastward spin is caused by the way Earth formed billions of yea...

The answer to what time does the eclipse end depends on your location and the type of eclipse, but the end is defined by the moment the Moon fully moves away from the Sun as see...

The eight moon phases in order are new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, and waning crescent. This sequence repeats...

Apophis, a near-Earth asteroid roughly 340 meters in diameter, is one of the best-studied objects outside Earth’s atmosphere. Named after the ancient Egyptian chaos deity, Apo...

The times for solar eclipse describe the sequence of events and when each phase will be visible from a given location. These include first contact (the moon begins to cover the...

Every star is born with a finite supply of nuclear fuel, and stars that have died represent the inevitable end of that supply. How a star dies depends primarily on its mass, wit...

The next notable solar eclipse depends on your location, but two events stand out for timing and visibility. An annular solar eclipse occurs in October, favoring the Western Uni...

Images of last night’s eclipse circulates widely online, but not every file labeled with a time stamp or telescope brand is reliable. This guide explains how to find authorita...