Fireballs
A video from a Pittsburgh resident was uploaded to their website.
Numerous reports have been made across social media and messaged into Nottinghamshire Live, with people reportedly hearing the 'loud bang' at around 10pm.
One reader messaged through to Nottinghamshire Live and said he heard it in Mapperley Park and that it made his flat feel like it was "shaking".
Fernando Martins, who described it as a "big and very quick explosion", said: "[It was] just as simple as a very loud muffled bang. "I cannot really make much sense of it, but at the same time it felt like a big and very quick explosion.
Beginning about 2 p.m., NorthEscambia.com was flooded with over 600 messages and comments from people reporting the incident, and Escambia County 911 also received numerous calls.
A majority of the comments were concentrated from Molino to the north to Beulah in the south, but other reports were received from across Escambia, Santa Rosa and Baldwin counties.
Escambia Fire Rescue checked the area out and found nothing. And the U.S. Geological Survey did not report a earthquake.
Click here to see a Facebook post with hundreds of reader reports.
The event was recorded in the framework of the SMART project, which is being conducted by the Southwestern Europe Meteor Network (SWEMN). The event was spotted from the meteor-observing stations located at Sevilla, La Sagra (Granada), La Hita (Toledo), and Sierra Nevada (Granada).
The astronomical event was sighted in Cincinnati and in Kentucky. Twitter users reported the sighting before 6:30 a.m.
Many users said it appeared blue or green, then turned orange before it burned out.
"Just happened to look southeast this morning before 6:30 and caught a meteor in the sky. Lit up all red, looked like a contrail fizzling out. Can't remember ever seeing one before - very cool," twitter user Ryan Wichman said.
According to NASA, meteoroids are objects in space that range in size from dust grains to small asteroids. When they enter Earth's atmosphere at high speed and burn up they become meteors. They can become visible fireballs or "shooting stars."

Ice Age Diorama. From left to right: Equus hemionus, Mammuthus primigenius, Coelodonta antiquitatis, Bison exiguous skeletal mounts at the Tianjin Natural History Museum.
As of now, this paper by Richard Firestone, Allen West and Simon Warwick-Smith and colleagues has amassed over 550 citations in Google Scholar - which is a lot! It is on its way to becoming a classic. But it has also received more than its fair share of criticism, mostly sustained from just a handful of vehement opponents. But has any of their criticism stuck? And what is the status of Firestone et al.'s paper today? Has the dust settled on an outcome? Are we there yet?

Evolution of temperatures in the post glacial period, after the Last Glacial Maximum (LGM), showing very low temperatures for the most part of the Younger Dryas, rapidly rising afterwards to reach the level of the warm Holocene, based on Greenland ice cores.
The event was recorded in the framework of the SMART project, which is being conducted by the Southwestern Europe Meteor Network (SWEMN). The event was spotted from the meteor-observing stations located at Sevilla, La Sagra (Granada), La Hita (Toledo), Sierra Nevada (Granada), and Calar Alto.

A color-coded gravity image of the Ora Banda Impact Crater site. The crater (deep blue) is in the middle of the image.
Found near the Western Australian town of Ora Banda, the newly dubbed Ora Banda Impact Crater is about 3 miles (5 kilometers) across. This huge hole was likely created by a meteorite up to 660 feet (200 meters) wide, or longer than the length of two American football fields, according to Resourc.ly, a Western Australia news outlet.
When geologists at Evolution Mining, an Australian gold mining company, came across some unusual rock cores at Ora Banda, they called Jayson Meyers, the principal geophysicist, director and founder of Resource Potentials, a geophysics consulting and contracting company in Perth. Meyers examined the geologists' drill core samples, as well as rock samples from the site, and he immediately noticed the shatter cones — telltale signs of a meteorite crash.
Shatter cones form when high-pressure, high-velocity shock waves from a large impacting object — such as a meteorite or a gigantic explosion (such as would occur at a nuclear testing site) — rattle an area, according to the Planetary Science Institute (PSI), a nonprofit group based in Tucson, Arizona, which was not involved with the new find. These shock waves shatter rock into the unique shatter cone shape, just like a mark that a hard object can leave on a car's windshield.
Because "we know they didn't do any nuclear testing at Ora Banda," the evidence suggests that an ancient impact crater hit the site, Meyers told Resourc.ly.
Comment: The American Meteor Society (AMS) has received 264 reports about a meteor fireball seen over DC, IL, IN, KY, MD, MI, NC, NJ, NY, OH, Ohio, Ontario, PA, SC, TN, VA, WI and WV on Wednesday, September 30th 2020 around 10:24 UT.
Update: 1st Oct. 2020
This meteor fireball event has now had 567 reports posted to the AMS website, making it the most widely reported meteor fireball in the US since July 2019.
More videos have been uploaded to the AMS website: