Good aurora-viewing conditions could continue to nightfall in the eastern US. Before heading out, here's what you need to ...

On an overcast bank holiday Sunday morning in Dublin, rain threatened but never quite came down as thousands took part in ...

Twenty-one states may be able to see the northern lights Sunday night into Monday, according to a forecast from the National ...

The weather will be dry but the skies hardly look clear Sunday. If you notice a haze in the sky, smoke from the Canadian Wildfires is streaming into the region.Highs this afternoon are expected to ...

Have you ever wondered why Earth is bathed in sunlight while outer space appears pitch black, even though both exist under ...

On a Thursday morning in Portland’s Old Town neighborhood, two dozen people mill around a warehouse, waiting for the results ...