About one in nine adults suffer from chronic insomnia and its residual effects like drowsiness, cognitive issues, and ...

This composite image was weeks in the making, as Horálek’s two "crossings" happened months apart. Mars traced its path ...

Many astronomical events, such as meteor showers, run by calendrical timings as well. But our moon and the other planets move ...

Spatiotemporal Evolution Patterns and Intelligent Forecasting of Passenger Flow in Megacity High-Speed Rail Hubs: A Case ...

In low-Earth orbit, a small California startup is trying to do something that sounds like science fiction: redirect sunlight ...

Abstract: The uncertainty in planned reserve activation leads to uncertainty in the state of charge (SoC) of pumped-storage hydropower plants (PSHPs). Investigating this uncertainty in the unit ...

Walking more is associated with reduced risk for dementia, diabetes, heart disease, and more—but a new study says you can get fewer than 10,000 steps a day and still see all those benefits. An ...

Sunday, Dec. 21 is the winter solstice, marking the shortest day and longest night of the year. Long before modern science explained the phenomenon, ancient cultures recognized the solstice as a ...

Dec. 21 (UPI) --The Ursid meteor shower peaks Sunday night into early Monday morning, and is the last major event on the celestial calendar this year. Observers have the best chance to see between ...

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.

Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight.

On Sunday, Dec. 21, at exactly 10:03 a.m. EST, the Northern Hemisphere's astronomical winter officially begins with the winter solstice. That's the moment when the Northern Hemisphere is tilted ...