Fireballs
The infamous meteorite which exploded over Chelyabinsk, Russia, in February 2013, injuring 1,000 people, is believed to have originated from an Apollo asteroid.
The monster rock is believed to be up to 4km-long (2.4miles) and although it passes us at the relatively safe distance of 14 million miles, NASA describes it as a "close approach" and is closely monitoring it to learn more about the asteroid that could one day threaten Earth.
It is thought to be the asteroid that was responsible for sending the first recorded event in the USA of a meteor crashing to Earth which hit and injured a human.
On November 30 1954 Ann Hodges of Sylacauga, Alabama, USA, was injured by a falling meteorite.

Dozens of people took to social media on Monday night after spotting a meteor over the skies of south east Queensland
The Australian Weathercam Network's (AWN) camera at New Farm, which takes a photo every 20 seconds at night, captured the shooting star over a green-lit Story Bridge at exactly 7:50:40pm on Monday.
It was also sighted by dozens of people who took to social media to share their excitement.
Dr Stephen Hughes from Queensland University of Technology's Science and Engineering Faculty said the meteor had to be burning bright for it to be photographed so clearly over a brightly-lit Brisbane CBD.
"If it was in the sky for several seconds, that's in a fireball category, like something the size of an orange coming through the atmosphere," he said.
Dr Hughes said spotting a meteor was common, adding that a stargazer could see one as frequently as every half hour.
"If you see a meteor flash really quick it's probably the size of a grain of sand. If it's like this it could be bigger because it's burning for longer," he said.
"The fact it's got that light competition and it can still be seen ... I would veer towards something a bit bigger coming in."

People all across the metro Atlanta area reported seeing a large fireball streak through the sky Monday afternoon over Snellville and Winder.
Several WSB-TV viewers submitted images and video to Severe Weather Team 2 Meteorologist Glenn Burns of the object, which was spotted around 3:45 p.m.
Okay...so we have a mystery on our hands. I know some people who know some people...we will find out something soon....Posted by Glenn Burns on Monday, January 11, 2016
Glenn spoke to officials at the Tellus Science Museum in Cartersville, who say they believe the mysterious fireball is space debris, but so far, no one has officially determined what it was.
Here is the video of this object seen over Snellville at 3:45 this afternoon. No sound was observed. This was submitted by one of our FB friends.
Posted by Glenn Burns on Monday, 11 January 2016
Why is NASA suddenly so concerned about meteors and asteroids hitting the Earth? After telling us that "no large object is likely to strike the Earth any time in the next several hundred years" last year, NASA is now spending millions of dollars to set up a "Planetary Defense Coordination Office" that will be headed up by a designated "Planetary Defense Officer". According to NASA, more than 13,500 near Earth objects have been found so far, and another 1,500 new NEOs are being discovered each year. Approximately 10 percent of all near Earth objects are one kilometer or larger in size, and if one of those giant space rocks ever hit us, it would likely be considered an "extinction level event". It makes sense that NASA would be concerned about this threat, but why now?
The announcement of this new office was made on Friday, and very few mainstream news outlets covered it. But I did find this story on CNBC...
Of course once again NASA played down the idea that there is any sort of "imminent threat" during the announcement of this new program, but if there is no threat why go to so much trouble and effort?If and when the interplanetary asteroid apocalypse comes, NASA plans to be prepared.
In a little noticed move this week, the space agency announced that it had created a directorate for "detecting and tracking near earth objects (NEOs)."
The new Planetary Defense Coordination Office—which, despite its science fiction-sounding name, is part of a very real effort to ward off the potentially deadly impact of asteroids that may hit the planet—is charged with supervising "all NASA-funded projects to find and characterize asteroids and comets that pass near Earth's orbit around the sun."
According to the Washington Times, one of the things that this new Planetary Defense Coordination Office will be focusing on is a way to "redirect" potentially dangerous asteroids...
Comment: No. Even NASA's own space data supports citizens' recent observations, namely the inconvenient fact that meteor fireballs are increasing dramatically.
Asteroid 'redirection' or 'deflection' remains just theoretical. A more accurate way of looking at it is that NASA is funding deflection and redirection of the topic of space threats by 'getting the message out' that 'everything is just fine'.
It is well worth remembering what can come out of the sky, without any warning at all, such as the Chelyabinsk meteor in February 2013:
For more on the very high probability of Earth soon being on the receiving end of direct or indirect cometary bombardment, and why, see Laura Knight-Jadczyk's Comets and Catastrophe series:
- Tunguska, Psychopathy and the Sixth Extinction
- Letters From the Edge
- Meteorites, Asteroids, and Comets: Damages, Disasters, Injuries, Deaths, and Very Close Calls
- Impact Hazards on a Populated Earth?
- Climate Change Swindlers and the Political Agenda
- Forget About Global Warming: We're One Step From Extinction!
- New Light on the Black Death: The Cosmic Connection
- The Hazard to Civilization from Fireballs and Comets
- Cosmic Turkey Shoot
- Wars, Pestilence and Witches
- Thirty Years of Cults and Comets
- Comet Biela and Mrs. O'Leary's Cow
- Tunguska, the Horns of the Moon and Evolution
Comment: NASA space data supports citizens' observations: Meteor fireballs are increasing dramatically
comparing 2014 to 2013, the frequency of fireballs increased by 120%. Comparing 2015 to 2014, fireballs increased by 20%. That is a significant increase, and it should be generating a lot of attention. If it is, then it's being done very quietly behind closed doors.Further research into increased meteor fireball activity - including its causes, effects, and role in human history - can be found in Earth Changes and the Human-Cosmic Connection by Pierre Lescaudron and Laura Knight-Jadczyk.
But nobody knows what it is. Here maybe a clue...
Cameras of the Ukrainian observation network recorded a burning meteor-like object striking the sky of Ukraine, Belarus and Russia at around 9:40 pm local time.
The strange flashing object was travelling at an altitude of ~ 77 km and a speed of about 6 km/s, from the southwest to the northeast.
Its disintegration created a long, wide, slightly glowing orange-red trail resembling a slow-burning gases. Was it a comet? A meteor? Space junk?

Another spectacular meteor fireball explodes high above Bangkok, Thailand on November 2nd, 2015
Well, the results are in, and the answer is simple: comparing 2014 to 2013, the frequency of fireballs increased by 120%. Comparing 2015 to 2014, fireballs increased by 20%. That is a significant increase, and it should be generating a lot of attention. If it is, then it's being done very quietly behind closed doors.
Since October 2013, the web site spaceweather.com has published daily data from NASA's All-Sky Fireball Network, which observes, and daily reports, fireball activity over the US.2
I have collated both sets of data - from NASA and the AMS - to produce the following graphs, taking into account that each dataset relies on different definitions of 'meteor fireball'. Click on the graphs to view them at full size.
Comment: Readers interested in the changing near-space environment might enjoy our research into increased asteroid and fireball activity - including its causes, effects, and role in human history - in Earth Changes and the Human-Cosmic Connection.
Comment: Chelyabinsk meteor strike - a wake-up call for the world