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Mon, 26 Jul 2021
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Fireballs

Fireball 4

Meteor fireball blazes over Ohio

Meteor fireball over Ohio
© YouTube/Fix It Broken (screen capture)
Event recorded on: 2021/04/19 01:22:40 am


Question

The amazing 'fireballs' over North Wales which have left plenty of people puzzled

Fireball effect in the sky over Rhyl
© Ray Worsnop
Fireball effect in the sky over Rhyl
The fireball effect was seen by people from different parts of the coast and could be seen clearer in some places

People in North Wales have captured this amazing "fireball" effect on camera after spotting the phenomenon in the sky.

Many thought it looked like a comet or solar flare, while others speculated that it might have been visitors from another planet.

Ray Worsnop, a freelance photographer, was able to photograph the phenomenon from his home in Rhyl and posted it on social media.

He wrote: "HELP. Did anyone else witness this as the Sun was setting tonight 16th April 2021? Can anyone explain this please?"

Fireball 2

Spectacular meteor fireball flies across Spain

fireball
Star gazers in Spain had a rare treat on Friday night, April 16 as a stunning fireball was clearly visible for almost a minute over much of the country when a rock from an asteroid entered the Earth's atmosphere at an impressive 61,000 kilometres per hour. According to the Astrohita Foundation, while most spectacles of this kind are extinguished immediately or at least within a few seconds, this fireball remained alight for nearly sixty seconds.

The SMART Project is responsible for running the Network of Bodies and Meteors of Southwest Europe, which closely monitors events of this kind, and the phenomenon was reported at the La Hita Astronomical Complex in Toledo, as well as in Almeria, Granada, Sevilla and Madrid.


Question

Loud 'boom', shaking in Charlotte, North Carolina was not an earthquake

Loud boom Charlotte, NC
© WCNC
A loud bang in south Charlotte Thursday remains a mystery.

No injuries or damage was reported after the loud noise and shaking were felt across portions of south Charlotte shortly after 11 a.m.

WCNC Charlotte Chief Meteorologist Brad Panovich was contacted by the Charlotte Fire Department inquiring about the possibility of an earthquake. While Brad did find three seismographs near Charlotte that measured the event, Brad found no evidence of an actual earthquake or other seismic events.

While the origin of the sound is unknown, Charlotte neighborhoods including Myers Park, Southpark, Barclay Downs, and other neighborhoods along Fairview Road, Park Road, Selwyn Avenue, Woodlawn Road, Runnymede Lane and Colony Road reported hearing the sound.

Comet 2

Ancient impactor that created the Moon may still be inside Earth

Theia
© Jurik Peter/Shutterstock
Researchers are fairly certain that we gained our favorite satellite, the Moon, after a planet, Theia, collided with the proto-Earth 4.5 billion years ago. What's not certain are the details surrounding Theia's fate. Was it a hit-and-run, or did the mantles of the two planets merge?

Qian Yuan, Earth scientist at Arizona State University, and his colleagues recently suggested a new line of evidence to support the latter hypothesis, suggesting that Theia not only merged with Earth, but we might know right where the remnants of its mantle reside in Earth.

Giant impact hypothesis

"Compared to the Moon, there is much less [known] about Theia," says Yuan. "The Moon is there. You have samples. People have been there ... few people care too much about the impactor."

A lot of the work around the giant impact hypothesis involves comparing isotopes found on the Moon with those found on Earth. Their similarities in composition suggest that the Moon is made of a hunk of ancient Earth, meaning something like a giant impact knocked it off our Pale Blue Dot.

Original models estimated that the impactor, Theia, was about the size of Mars (half the size of Earth today). Though, some recent studies suggest it might've been more like four times the size of Mars, or roughly the size of the proto-Earth. Either way, most researchers agree that the core — the densest part — of Theia merged with the core of Earth incredibly quickly after the impact, in a matter of hours.

Fireball

'What is that in the sky?' Floridians catch meteor fireball's close brush with Earth

Residents captured the asteroid streaking through the sky on Monday night
It wasn't a bird or a plane that gave Floridians a shock late Monday night.

It wasn't even Superman.

A meteor shot across the sky around 10 p.m. Monday.

On social media, residents along the state's Atlantic coast, from West Palm Beach south to Miami, shared videos on Twitter of the surprising sight.

Dashcam footage and security videos showed a still, dark night suddenly lit up by what appeared to be a large fireball streaking diagonally across the sky. In just a few seconds, it was over.


Fireball 4

Bright meteor fireball turns the Central Asian night sky green

fireball
The fall of the celestial object, probably a meteorite, was observed in several countries in the region, including Kyrgyzstan and Uzbekistan.

On Tuesday, residents of the Chui and Bishkek region in Kyrgyzstan, a nation located in Central Asia, were surprised by a bright flash that illuminated the night sky intensely as it fell towards Earth. The phenomenon, presumably caused by a meteorite, is already being investigated by the corresponding authorities, local media report .

In the videos of the event, a bright white object can be observed falling towards our planet and illuminate, at least for a few moments, the clouds in the night sky with an intense light green color, before continuing its journey towards the earth's surface.


Comet 2

New Comet C/2019 U5 (PANSTARRS)

CBET 4953 & MPEC 2021-G80, issued on 2021, April 07, announce that an apparently asteroidal object (magnitude ~21.0) discovered on CCD images obtained with the F51 Pan-STARRS 1 survey's 1.8m Ritchey-Chretien on 2019, October 22.22 and designated A/2019 U5 (cf. MPEC 2019-V10) has been found to show cometary appearance by other CCD observers over the past half year. The new comet has been designated C/2019 U5 (PANSTARRS).

Stacking of 20 unfiltered exposures, 120 seconds each, obtained remotely on 2021, April 02.1 from Z08 (Telescope Live, Oria) through a 0.7 m f/8 Ritchey Chretien + CCD, shows that this object is a comet with a compact coma about 15" arcsec in diameter (Observers E. Guido, M. Rocchetto, E. Bryssinck, M. Fulle, G. Milani, C. Nassef, G. Savini, A. Valvasori).

Our confirmation image (click on it for a bigger version; made with TYCHO software by D. Parrott)

Comet C/2019 U5 (PANSTARRS)
© Remanzacco Blogspot

Fireball 2

Meteor fireball observed over Scotland

Meteor fireball
© Alamy (STOCK IMAGE)
Many Scots saw the meteor in the sky
A HUGE meteor lit up the skies of Scotland tonight.

Weatherman Sean Batty told fans he spotted a "fireball dropping out of the sky".

The STV weather presenter took to social media to ask other Scots whether they had seen the very bright meteor.

He said: "Oh wow, did anyone else just spot that fireball dropping out of the sky there? Very bright meteor by the looks of it!"

It is understood to have come crashing through the atmosphere around 8.30pm tonight.

Sightings were reported from all over the country including in Fife and Inverclyde.

Many Scots took to Twitter to report similar sightings of the firework-like flash.

Fireball 2

Meteor fireball over Sevilla and Cádiz, Spain (4 April)

fireball
This bolide was spotted over Spain on 4 Abril 2021, at about 23:42 local time (equivalent to 21:42 universal time). The event was generated by a rock from an asteroid that hit the atmosphere at about 57,000 km/h. The fireball began at an altitude of about 81 km over the south of the province of Sevilla, and ended at a height of around 30 km over the north of the province of Cádiz.

This bright meteor was recorded in the framework of the SMART project, operated by the Southwestern Europe Meteor Network (SWEMN) from the meteor-observing stations located at Sevilla, La Hita (Toledo), La Sagra (Granada), and Madrid (Universidad Complutense). The event has been analyzed by the principal investigator of the SMART project: Dr. Jose M. Madiedo, from the Institute of Astrophysics of Andalusia (IAA-CSIC).