Astrophysicists have observed some puzzling behavior in star clusters that seem to defy our current understanding of gravity at cosmic scales. Intriguingly, the observations fit with an alternative ...

WASHINGTON — When does fall begin? Well, it depends on which fall you are talking about. There is “meteorological” fall and “astronomical” fall, but the two are very different concepts with different ...

Astronomy has always relied on optical instruments, from the early Galilean telescope to fiber-fed spectrographs, so much so that astronomy and modern optics are called astrophotonics. Since ...

Astronomical observations from ground-based telescopes are sensitive to local atmospheric conditions. Anthropogenic climate change will negatively affect some of these conditions at observation sites ...

WASHINGTON D.C., DC — The astronomical start to spring is just around the corner! The official time of the Vernal Equinox will be at 11:33 A.M. on Sunday, March 20. But wait, didn’t we say spring ...

August 31st marked the end of meteorological summer then meteorological fall started on September 1st. According to astronomical seasons, we are still in summer until September 22nd. Confusing? Let's ...

Lots of little dots with no apparent pattern: Where laypeople may just see milky gray photos sprinkled with what look like random crumbs, it is enough to make astronomers' hearts miss a beat. We are ...

Nearly a decade ago, Malec discovered a completely new way to experience astronomy when she saw astronomer and musician Matt Russo, Ph.D., give a presentation at a local planetarium in Toronto. Using ...

The Historic Astronomical Observatories of Ireland have been added to the World Heritage Tentative List for Ireland, the Department of Housing, Local Government and Heritage announced on Friday, April ...