Page 23 - Space Rocks News Today : Breaking News, Live Updates & Top Stories | Vimarsana

To hit us? we'll talk with former astronaut tom jones next how we track these massive space rocks and the risks they pose to earth. ♪ .

How many days is there of concussion story? how often are we going to hear of a junior sarria killing himself? >> reporter: meantime the nfl maintains it has taken the proper measures to protect its players. here is roger goodell. >> what's i greed to do is invest in science to accelerate our knowledge of head injuries to improve not just the game of football but sports in general and life in general. not just head trauma but also brain disease. >> reporter: the judge's ruling could result in several outcomes from dismissing the case completely to granting the plaintiff's wishes to proceed wit...

Again. >> that's right. a big space rock the size of a city block is expected to buzz by us at this hour. >> don't worry, there's no danger of it hitting us. the closest it will come to earth, about 605,000 miles. we're good. about 2 1/2 times the distance from the earth to the moon. joining us for more, alexandria steele and lawrence krause, the author of the book "a universe from nothing." alexandra, let's start with you. how big is this compared to some other recent space rocks in the news like the one that hit russia last month. will we be able to see this with the naked eye? >> oh, absolu...

>> this asteroid came so close to earth today that our gravity actually altered its orbit, so d.a. 14 now will return to earth in the vicinity of earth at least, in the year 2046. again, in 2080. either one of those events could be another close call. there are about a million space rocks in the vicinity of earth's orbit. so today's events could help save the planet in the future. >> they won't be hazardous for many hundreds of years. that gives us plenty of time to really be able to study the population, understand how it's structured and come up with mitigation strategies. >> and that could ...

Extremely close encounter with earth. the space rocks, what is it going to do? trace gallagher is monitoring it. >> before we think that that's going to handle it, no worries, the only reason that we know about this? pure luck. a dentist in spain spotted the asteroid on his high powered telescope and he told various space agencies around the world and nasa started following it. 2012 da 14. and 27 miles within the earth in about an hour and like seven minutes, like 2:24 eastern time and this here that you're seeing, this is it. this is from one of the high powered telescopes that nasa has and c...