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Grammy-winning artist Adele is once again saying, "Hello," and this time its as host of "Saturday Night Live."Adele announced the news on her Instagram page, saying that her hosting gig will happen almost 12 years to the day she first appeared on the sketch comedy show.The songstress added that she is excited and "absolutely terrified" to host for the first time.H.E.R. will perform as the musical guest.According to US Magazine, this will mark her first appearance in three years. 491

Head injuries have plagued the NFL for years. But the helmets that players wear have retained roughly the same design since the 1970s.This season, about 70 NFL players are wearing a new helmet that's a radical departure from previous iterations -- and, the league believes, safer.It won't be easy to spot when you're watching games on Sunday. The Vicis Zero1 looks a lot like other helmets. But it's designed to soften the blows to the heads of NFL players. 465

Grab your headphones and prepare to be blown away.NASA just announced it has heard the first-ever "sounds" of wind on Mars. But if you're expecting howling, swooshes and crackles, you're in for a surprise. These are vibrations, captured by NASA's InSight lander, which touched down on the Red Planet just last week. The craft will stay put until November 24, 2020, measuring quakes that happen anywhere on Mars.This week, the craft recorded something unexpected."InSight sensors captured a haunting low rumble caused by vibrations from the wind, estimated to be blowing between 10 to 25 mph (5 to 7 meters a second) on Dec. 1, from northwest to southeast," the agency said.An air pressure sensor and a seismometer recorded the noise through the vibrations in the air and vibrations around the aircraft "caused by the wind moving over the spacecraft's solar panels."This is the only time when vibrations from the lander will be recorded by the seismometer, since it will be moved by the craft's robotic armed and placed on the Martian surface, along with other instruments.The craft's landing comes as part of NASA's mission to explore the planet's deep interior.InSight lander's sensors are designed to detect quakes and air pressure through wind vibrations. The lander will measure whether tremors have the same effect as earthquakes. The Seismic Experiment for Interior Structure (SEIS), the seismometer, will use the vibrations to help scientists configure more about the planet's interior."Capturing this audio was an unplanned treat. But one of the things our mission is dedicated to is measuring motion on Mars, and naturally that includes motion caused by sound waves," Bruce Banerdt, the InSight principal investigator at NASA's Jet Propulsion Laboratory, said in a statement.To better hear this bass sound, it's better you bring out your headphones, or your subwoofer, as NASA suggested.You can hear the sounds here and listen to NASA's news telecon with a panel of scientists here.The-CNN-Wire 2011

Here are several things the National Transportation Safety Board will examine as it investigates the limousine crash that killed 20 people in upstate New York last week: 177

GORMAN, Calif. (KGTV) - Interstate 5 over the Grapevine reopened Thursday afternoon after an hours-long closure due to snow, ice, and multiple collisions. California Highway Patrol officials said the crashes involved semi-trucks and other stuck vehicles on north I-5 just north of Gorman School Road. There were no immediate reports of injuries.CHP officers also escorted traffic over Highway 58.At 9:27 a.m., the National Weather Service reported snow in the higher elevations of the I-5 pass through the Grapevine. Drivers are urged to use extreme caution when traveling over the Grapevine or avoid the area if possible.A Winter Weather Advisory has been extended until 4 p.m. and now includes areas in the Kern County Mountains above 4,000 feet, according to NWS. 774