Columbus, OH

The multiday severe weather threat will develop in the Midwest and South this weekend and then spread toward the East Coast by Monday. Destructive straight-line winds, large hail and strong tornadoes are all potential threats.

April's temperature forecast is shaping up to be warmer-than-average from the Southeast to the Plains and Southwest, while parts of the northern tier might have to deal with frustratingly cool weather at times.

A rare celestial explosion could create a brand new bright spot in the night sky as the T Coronae Borealis, a star that erupts only once every 79 years, is on the verge of its next blast. NASA experts predict March 27 is the most likely day for the fiery spectacle. If skies are clear and cloudless, here’s where to look to witness the one-in-a-lifetime cosmic event.

Captivating new video shows an impressive eruption at Hawaii’s most active volcano. Kilauea has been erupting on and off since December, but the lava fountains on March 26 were so tall, the heat was captured by a satellite. See the stunning images and learn why the USGS was concerned about volcanic glass.

Imagine stepping into a forest where thousands of fireflies blink in perfect harmony, lighting up the night like a synchronized symphony. This rare phenomenon is set to dazzle visitors at South Carolina’s Congaree National Park and Tennessee and North Carolina’s Great Smoky Mountains National Park from mid-May through early June. But if you want to see this light show, you’ll need to act fast – both parks are offering limited viewing spots through a highly anticipated lottery system.