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Sun, 02 Oct 2022
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Fireballs


Fireball

First probable impact crater discovered in Spain

Impact Crater Spain
© Sánchez-Garrido et al 2022. Basemap: Instituto Geográfico Nacional (IGN). License: CC-BY 4.0.
Location of the crater centre and 20 kilometre radius of the area affected by the impact in the Alhabia-Tabernas basin.
The first probable impact crater in Spain has been identified in the southern province of Almeria. The discovery was presented last week at the Europlanet Science Congress (EPSC) 2022 by Juan Antonio Sánchez Garrido of the University of Almeria.

While around 200 impact structures have been identified around the world, the study is the first to identify signs of an impact crater on the Iberian Peninsula. The discovery is the result of 15 years of research by an international team of scientists from the University of Almeria, the Astrobiology Center of Madrid, the University of Lund and the University of Copenhagen.

Prof Sánchez Garrido said: "We believe that the impact event occurred around 8 million years ago. We have investigated numerous aspects of the geology, minerology, geochemistry and geomorphology of the region. The basins of Alhabia and Tabernas in the area are filled with sediments dating back between 5 and 23 million years, and they overlie older metamorphic rocks. Much of the impact structure is buried by more modern sediments, but erosion has exposed it and opened up the opportunity for studies."

The crater itself is thought to be about 4 kilometres in diameter, and it is surrounded by a larger structure about 20 kilometres across where the impact caused the sedimentary strata to collapse.

Fireball 2

Meteor fireball over Malaga, Spain on September 27

fireball
A fireball hurtled across the Malaga night sky in the province in the early hours of this Tuesday morning, after entering the Earth's atmosphere at 60,000 kilometres an hour and travelling almost parallel to the ground.

José María Madiedo, a researcher at the Andalusian Institute of Astrophysics and the astrophysicist who heads the SMART project, said the rock had come from an asteroid.

This type of rock which enters the atmosphere at great speed is called a meteoroid. When it collides with the air, its surface heats up and it becomes incandescent, turning it into a fireball.


Fireball 2

Meteor fireball over California on September 23

mmmmmm
© Robert Lunsford (University of Arizona)
We received 11 reports about a fireball seen over CA on Thursday, September 22nd 2022 around 03:35 UT.

For this event, we received one video and one photo.


Fireball 2

Meteor fireball over the UK and Ireland on September 14

fire
© Paul M.
We received 876 reports about a fireball seen over County Carlow, County Cavan, County Clare, County Cork, County Donegal, County Dublin, County Galway, County Kilkenny, County Leitrim, County Limerick, County Louth, County Mayo, County Sligo, County Tipperary, County Waterford, County Wexford, County Wicklow, England and No on Wednesday, September 14th 2022 around 20:58 UT.

For this event, we received 10 videos and 4 photos.


Info

Scientists shine light on 66-million-year-old meteorite wildfire mystery

Impact Study
© compiled by Vellekoop et al
(A) location map of the study area. (B) paleogeographic reconstruction of Gulf of Mexico and Baja California Pacific margin taken from Stéphan et al, and Helenes & Carreño, with location of this study, Chicxulub crater, and impact-related slumps, faults, slides, and tsunami deposits.
The meteorite that wiped out Earth's dinosaurs instantly ignited forest wildfires up to thousands of kilometres from its impact zone, scientists have discovered.

The six-mile-wide meteorite struck the Yucatan peninsula in what is now Mexico at the end of the Cretaceous Period 66 million years ago, triggering a mass extinction that killed off more than 75 percent of living species.

Uncertainty and debate have surrounded the circumstances behind the devastating wildfires known to have been caused by the strike, with several theories as to how and when they started, and their full extent.

By analysing rocks dating to the time of the strike, a team of geoscientists from the UK, Mexico and Brazil has recently discovered that some of the fires broke out within minutes, at most, of the impact, in areas stretching up to 2500km or more from the impact crater.

Wildfires that broke out in coastal areas were short-lived, as the backwash from the mega-tsunami caused by the impact swept charred trees offshore.

Fireball 2

Meteor fireball over Idaho on September 9

fireball
We received 6 reports about a fireball seen over ID, MT and OR on Friday, September 9th 2022 around 04:57 UT.

For this event, we received one video and 2 photos.


Fireball 2

Meteor fireball over Morocco (Sept. 5 )

fireball
This bright bolide was seen from Spain on September 5, at 2:01 local time (equivalent to 0:01 universal time). The event was generated by a rock (a meteoroid) from a comet that hit the atmosphere at about 235,000 km/h. The fireball overflew Morocco. It began at an altitude of about 133 km over the Mediterranean Sea, moved southwest, and ended at a height of around 78 km over the locality of Iamourane.

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 Huelva, La Hita, CAHA, OSN, La Sagra, and Sevilla. 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).


Fireball 2

Meteor fireball over Scotland and the Netherlands on September 4

fireball
We received 45 reports about a fireball seen over Noord-Holland, Scotland and Utrecht on Sunday, September 4th 2022 around 20:46 UT.

For this event, we received one video.


Fireball 2

Meteor fireball crosses the sky of 3 cities in Minas Gerais, Brazil on September 5

mmmmmmmmmm
Meteor in Minas Gerais

The cameras of Clima ao Vivo and Bramon, recorded a meteor that crossed the sky of the South and Southeast of Brazil, in the dawn of this Monday (05). Check out the locations and our partners below:

Southeast

Minas Gerais

- Pedro Leopoldo/MG - Blink Telecom
- Patos de Minas/MG - Ivan Soares (Bramon)
- Belo Horizonte/MG - Aeroclube de Minas Gerais


Fireball 2

Meteor fireball over New York and other states on September 3

mmmmm
© Rick Needham
We received 112 reports about a fireball seen over CT, MA, ME, NH, NJ, NY, OH, Ontario, PA, Québec, Quebec and VT on Saturday, September 3rd 2022 around 03:30 UT.

For this event, we received 5 videos and 5 photos.