美[ˈfaɪrˌbɔl] 英[ˈfaɪə(r)ˌbɔːl] n.火球;火流星;平急球 网络大流星;烈焰球 复数:fireballs 同义词 n. meteor,shooting star,bolide,falling star,comet 英汉 英英 网络释义 n. 1. 火球 2. 火流星 3. 平急球...
These bright fireballs can be an incredible boon to our understanding of the formation and evolution of the solar system. When an object is large enough, it is possible for fragments (or the whole thing) to penetrate the atmosphere intact, delivering a new meteorite to our planet's surface....
The only other obvious possibility is that the objects were actually manmade debris that fell to Earth from orbit. There’s a whole lot of human space junk tumbling around Earth, and that trash frequently finds itself falling back down in a streak of flame. Still, the fact that no obvious...
“It’s a sparsely populated area but not as sparsely populated as where most meteorites fall — the ocean,” he added. Ad Feedback Worldwide, only eight to 10 meteorites are recovered each year out of hundreds of fireballs seen falling to Earth, Pitt said. ...
EST, the data shows, and most individual sightings lasted from 1 to 7 1/2 seconds. But a handful of reports indicated that the falling space rock lingered for quite a while longer than that before disappearing, with one report out of Augusta, West Virginia, and another out of Front Royal...
The cause of yesterday's fireball was most likely a meteor, rather than a satellite or falling piece of space debris, researchers said. "When you see something that bright streaking across the daytime sky, it's definitely a meteor," said Bill Cooke, head of NASA's Meteoroid Environment Off...
Meteors are most often seen as a very brief streak of light in the night sky. They typically occur and disappear so quickly that you wonder if you actually saw them. These streaks of light are commonly called "shooting stars" or "falling stars." Although they are most often seen at night...
Showers of meteors, in which the rate of meteor sightings temporarily increases at approximately the same time each year, have been recorded since ancient times. On rare occasions, such showers are very dramatic, with thousands of meteoroids falling per hour. More often, the usual hourly rate ...
Most people who spotted the meteor Wednesday night reported seeing it between 6:45 and 7 p.m. EST, the data shows, and most individual sightings lasted from 1 to 7 1/2 seconds. But a handful of reports indicated that the falling space rock lingered for quite a while longer than that ...