Today’s observatories document every pulse and flash in the sky each night. To understand how the cosmos has changed over ...

Combining observations from several powerful telescopes, astronomers have detected a gargantuan, 'wobbling' black hole ...

One of the most stubborn issues in cosmology today concerns the universe's rate of expansion. Scientists know it's expanding, ...

Yes, the darkest day of the year is here, but that means brighter days are ahead. Sunday is the shortest day of the year north of the equator, where the solstice marks the start of astronomical winter ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another star. A spectacular trio of merging galaxies in the constellation Boötes takes ...

Apple’s launch presentation introducing the iPhone 17 was posted online as soon as the event ended. If you watch the presentation closely, even part of it, then you’ll notice a presentation tactic ...

When it comes to the seasons, we discuss two different start dates — and both are correct, depending on how you look at it. Meteorological fall begins on September 1 and runs through November 30.

Babylonian astronomers created early star catalogs as early as the 12th century BCE, later expanding these to include celestial motions of the Sun, Moon, and planets by 1000 BCE. The Messier (M) ...

Distance signs on the highway tell you important information, including how far you are from your destination, where the next exit is, or when to expect a rest stop. These signals aren't always ...

Before the revolution triggered by Nicolaus Copernicus, a 16th-century cleric, the Earth was the unmoving centre of the cosmos. Afterwards, it was one of a family of planets swinging through space.