A meteor entering the earth's atmosphere lit up the sky early Wednesday around 2 a.m.

For one motorist driving west of Kenosha, it appeared that the streaking fireball had crashed near the Strawberry Creek club house and housing development. His 911 call triggered a response from both the Kenosha and Bristol fire departments.

Pleasant Prairie Police. dashcam video is below

They were waiting for the Aurora Australis, but amateur photographers were left guessing after seeing a bright green flash light up the Tasmanian sky.

Amateur photographer Leoni Williams captured a shot of the green streak about 9:30pm on Thursday by "accident".

Overlooking Pipe Clay Lagoon, toward Clifton Beach in southern Tasmania, Ms Williams had her camera facing south in anticipation of an Aurora.

"I was very lucky to capture this bright green object before it disappeared over the horizon," Ms Williams said.

"I'm still not sure what it was. I didn't actually see it with the naked eye as I wasn't watching. I had just set the camera on 30 seconds and pushed the shutter and turned back to my phone.

"I would imagine it was pretty quick. I nearly missed it because it was at the end of the exposure."

Photo sparked social media debate

Ms Williams took to social media to try and find out what she'd captured on camera.

Opinions varied, with some thinking it was a shooting star, a fallen satellite or even a UFO.

Spotted from the Huon Valley to Dodges Ferry, other photos began popping up on social media.

Eventually, it was shared on social media page Australian Meteor Reports.

"It's definitely a meteor," page administrator David Finlay said.

"That flash that's been captured is a very, very bright meteor - it's what we'd call a 'fireball'. It probably lit up the countryside."

Mr Finlay - a former industrial chemist who has been studying astronomy from an very early age - said the flash was created by a "small rock from space, blazing through the atmosphere, creating friction with the atmosphere".

"It glows and ionises gas - that's what you see as this fireball blazing through the sky.

"If it actually survives atmospheric entry and lands as a rock on land, that's what we call a meteorite - only if it makes it to the ground."

An eyewitness filmed a glowing falling object on his car DVR in the night sky, near the village of Tura in the north of Russia's Krasnoyarsk Territory.

Earlier, the Yenisei TV channel published a dashcam video, which showed a falling luminous body. It is reported that the incident occurred on Friday evening near the village of Tura.

The main objective of this study was to test the YDB impact hypothesis by analyzing a wide range of data from the Pilauco site in southern Chile. The following conclusions show that our data and interpretations are consistent with the YDB impact hypothesis and we found no evidence that refutes the hypothesis.

(1) At Pilauco, ~12,800-year-old peaks in high-temperature Pt-rich and native-Fe spherules are comparable to similar impact-related evidence found at more than 50 YDB sites in North America, Europe, and western Asia. It appears that the YDB layer at Pilauco is coeval with similar layers found at these sites on several continents and is also possibly related to the proposed YDB impact event.

(2) Identification of the YDB layer at Pilauco greatly expands the proposed YDB proxy feld ~6,000 km farther south of the closest well-studied YDB site in Venezuela, and ~12,000 km south of the northernmost YDB site in Canada, a distance equaling ~30% of Earth's circumference.

(3) Cr-rich spherules are found in the YDB layer at Pilauco, but not found at the ~50 other sites on four continents, suggesting that one or more local impacts/airbursts occurred in the Cr-rich basaltic terrain
circa Pilauco.

A total of five mass extinctions occurred during the last 500 million history of the planet earth, when more than 75 per cent of existing life forms had gone extinct. Various causes have been ascribed for each of the five mass extinctions.

The most recent, 5th mass extinction took place about 66 million years ago, when a huge meteorite with a radius of about 10 km crashed on the earth and made a crater with 180 km diameter and 20 km deep in the Yucatan village, Chicxulubin Mexico. The impact created a doomsday scenario.

Superheated dust particles and steam filled the sky preventing sunlight to reach earth for decades killing plant life as they could not carry out photosynthesis. Many volcanoes around the earth became active and spewed lava. There were super-tsunamis drowning land animals and plants. The atmosphere of earth became unsuitable to support most of the existing life forms, leading to the extinction of dinosaurs.

Can the 6th mass extinction occur in a similar manner and all of us would disappear before we figure out what hit us? Michael Rampino and Bruce Haggerty (1984) proposed the 'Shiva hypothesis' (named after Lord Shiva, the Hindu God of destruction) based on an earlier paper of Napier and Clube (1979). According to this hypothesis, the earth experiences large impact events with comets every 30 million years when solar system crosses the plane of Milky Way galaxy. This causes gravitational disturbances in the cloud of comets (Oort cloud) surrounding the solar system and sends some of them hurling towards the inner solar system. These may be propelled to collide with the earth by the 'sling shot' gravitational action of Jupiter (NASA's Voyager-1 and 2 used this effect to escape Sun's gravity).

Modelling studies suggest that an object of 1 km size, depending upon its speed and angle of approach is enough to wipe out the humanity according to Rampino, who gave the 'Shiva hypothesis.' This could throw up enough pulverised rock to block the sun for months. The debris falling back on earth would cause wild fires increasing the surface temperature and killing everything living to death. The earth will then go through a process of cooling and a prolonged winter possibly creating new forms of life millions of years later.

Asteroids are much harder to destroy than previously thought, new modelling shows.

The research, published in the journal Icarus, shows that an asteroid damaged in a collision - by another asteroid, for instance, or a nuclear missile fired at it in the blind hope that doing so will prevent it from smacking into the planet with catastrophic consequences - will substantially reconstruct itself because of the strong gravitational pull of its still-intact core.

The modelling, funded by NASA, substantially updates and contradicts earlier research that showed that a collision between a small asteroid and a large one would completely demolish the latter, the destruction facilitated by the rapid transit of cracks right through it.

The new study, conducted by Charles El Mir and KT Ramesh, of Johns Hopkins University, US, and Derek Richardson, of the University of Maryland, US, applies more fine-grain analysis and arrives at a distinctly different conclusion.

At issue, fundamentally, is the way rocks react to energetic impacts. This process is well understood at what can be called "laboratory scale", wherein real-world and simulated experiments use rocks roughly the size of a human fist.

But asteroids of a magnitude big enough to worry NASA scientists - or tempt would-be space-miners - are considerably larger than that. They might, indeed, be roughly the size of Berlin.

Researchers have discovered two previously unknown massive craters on Earth, the most recent estimated to have been produced by an impact only 800,000 years ago.

The craters - one in Western Australia and the other in Nicaragua - are revealed in a pair of papers published in the journal Meteoritics and Planetary Science.

In one sense, the Australian crater, in a location known as Yallalie, about 200 kilometres north of the state capital, Perth, has long been hiding in plain sight.

Buried deep beneath the surface, it was first tentatively identified as an impact site in 1992, after its discovery two years earlier during oil drilling exploration.

Subsequent studies of the 12-kilometre-wide circular formation, which also features a raised central structure three kilometres wide, identified it as the result of several meteorite impacts.

Anchorage - An Anchorage man's doorbell camera captured what appears to be a meteor streaking across the sky Wednesday morning.

Kip Minnery, who lives in Turnagain, says he wishes he could have seen the event live himself, but thought it was cool that his security camera caught it as it happened.

A number of southcentral residents reported on social media seeing a bright light move across the sky Wednesday morning. People from Anchorage to Big Lake and Palmer reported seeing either a blue or green-looking light.

A new celestial visitor - a comet - was discovered by Japanese astronomer Masayuki Iwamoto in late 2018. It'll provide nice opportunities for astrophotographers, as it will pass close to a couple of Messier objects in February 2019. It's a fast-moving comet that will be closest to Earth on February 12, 2019, at around 2:57 p.m. ET (19:57 UTC; translate to your time zone). The celestial visitor will safely pass by Earth at some 28 million miles (45 million km). The comet has been designated C/2018 Y1 (Iwamoto).

This comet is fast! Comet C/2018 Y1 (Iwamoto) is traveling through space at the amazing speed of 147,948 miles per hour (238,099 km/h) or 66 km per second, relative to Earth.

The best nights for observing the comet (with binoculars and small telescopes) should be on February 11 and 12. Preliminary estimates suggest the newly found comet might reach a brightness or magnitude between 7 and 7.8 , which means it should be easily seen with small telescopes and binoculars. It will not be visible to the eye alone.

Since it was first detected hurling through our Solar System, the interstellar object known as 'Oumuamua has been a source of immense scientific interest. Aside from being extrasolar in origin, the fact that it has managed to defy classification time and again has led to some pretty interesting theories. While some have suggested that it is a comet or an asteroid, there has even been the suggestion that it might be an interstellar spacecraft.

However, a recent study may offer a synthesis to all the conflicting data and finally reveal the true nature of 'Oumuamua. The study comes from famed astronomer Dr. Zdenek Sekanina of the NASA Jet Propulsion Laboratory, who suggests that 'Oumuamua is the remnant of an interstellar comet that shattered before making its closest pass to the Sun (perihelion), leaving behind a cigar-shaped rocky fragment.

Having worked with the JPL for almost 40 years - where he specializes in the study of meteors, comets and interstellar dust - Dr. Sekanina is no stranger to celestial objects. In fact, his work includes groundbreaking studies on Halley's comet, the Tunguska event, and the break-up and impact of Comet Shoemaker-Levy 9 on Jupiter.

His latest study, titled "1I/'Oumuamua As Debris of Dwarf Interstellar Comet That Disintegrated Before Perihelion", recently appeared online. In it, Sekanina addresses the possibility that the observations that began in October of 2017 by the Panoramic Survey Telescope and Rapid Response System-1 (Pan-STARRS-1) was actually a fragment of the original object that entered our system in early 2017.