effective than plus at reducing flights that s above the gum line for a cleaner, healthier mouth this three, feel the world. i m katie bo lillis in washington, and this is cnn moments go at&t said that massive outage for cellular customers today was linked to an error that occurred while trying to expand its network. they also said it was not the result of a cyber attack. federal agencies are also investigating after tens of thousands, potentially more one able to place calls or to text. take a look at this map, the outage was massive according to the website downdetector. these were the major cities reporting outages, service wasn t fully restored until a little after 3pm today, some 11 hours after the first reports began, the news continues right here on cnn welcome to the lead. i m jake tapper breaking this hour significant new action in the investigation into the massacre at robb elementary school in uvalde, texas? who is being ordered to appear before a grand jury. wel
about a week ago on top of a spacex falcon nine rocket. it has traveled a quarter of 1 million miles to the lunar orbit and now this engine right here is essentially the star of the show. over the next few hours first it is a 3d printed engine. it breeds both liquid methane and liquid oxygen. the first spacecraft in orbit to ever do that. and this engine is required to slow od down to just one meter per second and make what s called a soft landing or a controlled landing on the surface of the moon. and to do that, i mean, jake just think about it. it s like hitting a golf ball the spacecraft on the surface of the moon. and so in terms of timing, this is what it looks like starting at 06:12 p.m. we ve got the power descent initiation that s when that engine is really going to fire almost at full powered. then it 622, you have the hazard detection and avoidance. so this spacecraft is totally automated, so it relies upon cameras and sensors to guide the algorithm for its navig