For prime northern lights viewing in the United States, the strongest activity is forecasted to arrive late Friday night to Saturday morning. Clouds may also clear through the night to provide good vantages for the majority of the country, especially in the Midwest and Mid-Atlantic.

Authorities predict that states as far south as Oregon and Illinois will be able to see auroras between now and Oct. 6

A powerful solar flare has been hurled out of the Sun, and could cause disruption on Earth. The flare comes amid increasing solar activity that has brought a run of intense space weather in recent days and weeks.

Could a powerful solar flare wipe out life on Earth? Thursday’s flare was much smaller, reaching only X9 strength. It was, however, the strongest this year, beating out an X7.1 flare that erupted earlier this week and an X8.

The A3 comet will soon be visible in the night sky, but the clock is ticking on its ideal viewing time. Known officially as Comet Tsuchinshan-ATLAS, the celestial object reached a state known as its "perihelion" on Sept.

A comet that hasn't visited earth for 80,000 years is coming back this month. Here's what to know about its travels and how to see it.

A comet that has been absent from our skies for tens of thousands of years is making a close approach to Earth, offering sky-gazers the chance to witness Comet A3 (Tsuchinshan-ATLAS) with the naked eye.