This bright bolide was spotted over Spain on March 2, at 22:39 local time (equivalent to 21:39 universal time). The fireball was observed by a wide number of casual eyewitnesses, who reported it on social networks.

The event was generated by a rock (a meteoroid) from an asteroid that hit the atmosphere at about 97,000 km/h. The fireball overflew the provinces of Almería, Granada, and Jaén (Spain). It began at an altitude of about 101 km over the locality of Chirivel (province of Almería), moved northwest, and ended at a height of around 41 km over the locality of Arroyo Frío (province of Jaén).

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 Ayora (Valencia), Huelva, La Hita (Toledo), Calar Alto, Sierra Nevada, La Sagra (Granada), Sevilla, and El Aljarafe (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).

NBC Bay Area viewers shared videos recorded early Thursday morning showing a meteor lighting up the pitch-black sky.

One of the videos from a viewer in Vallejo shows a streaking light come into frame before lighting up the night sky.

Another video recorded by a viewer in San Ramon shows a similar sight.

Astronomer Gerald McKeegan with Chabot Space and Science Center confirmed the fireball was indeed a meteor, saying it likely started out as a small asteroid in space before burning up when it entered the atmosphere.

A log of unconfirmed and pending "fireball reports" from the American Meteor Society shows other residents across the Bay Area spotted the meteor after 2:20 a.m. Thursday.

Stunning footage shows the moment a blazing fireball lit up the night sky over Japan.

This video from Natori in Miyagi prefecture shows the bright meteor shooting overheard as sky gazers marvelled below.

It was captured on the night of Tuesday, 28 February, just before 8pm.

According to Nasa, a fireball is described as a bright meteor that is spectacular enough to be seen over a very wide area.

They reach a visual magnitude of -3 or brighter when from the observer.

We received 9 reports about a fireball seen over IL, IN and MI on Thursday, March 2nd 2023 around 06:44 UT.

For this event, we received one video.

We received 14 reports about a fireball seen over British Columbia, OR and WA on Wednesday, March 1st 2023 around 08:45 UT.

For this event, we received 2 videos.

We received 174 reports about a fireball seen over Auvergne-Rhône-Alpes, Île-de-France, Baden-Württemberg, Bourgogne-Franche-Comté, Bruxelles, Drenthe, England, Esch-sur-Alzette, Friesland, Gelderland, Grand Est, Hauts-de-France, Hessen, Kanton Esch an der Alzette, Limburg, Noord-Brabant, Noord-Holland and Nordrhein-West on Tuesday, February 28th 2023 around 23:24 UT.

For this event, we received 2 videos.

We received 12 reports about a fireball seen over AR, IN, KS, KY, MO and TN on Tuesday, February 28th 2023 around 04:23 UT.

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

We received 17 reports about a fireball seen over IL, IN, MO, OH and WI on Sunday, February 26th 2023 around 01:04 UT.

For this event, we received 2 videos and 2 photos.

Researchers at the University of Jena and the German Electron Synchrotron DESY solve a 60-year-old mystery with a high-pressure study.
For the first time, researchers have recorded live and in atomic detail what happens to the material in an asteroid impact. The team of Falko Langenhorst from the University of Jena and Hanns-Peter Liermann from DESY simulated an asteroid impact with the mineral quartz in the lab and pursued it in slow motion in a diamond anvil cell, while monitoring it with DESY's X-ray source PETRA III. The observation reveals an intermediate state in quartz that solves a decades-old mystery about the formation of characteristic lamellae in material hit by an asteroid. Quartz is ubiquitous on the Earth's surface, and is, for example, the major constituent of sand. The analysis helps to better understand traces of past impacts, and may also have significance for entirely different materials. The researchers present their findings in the journal Nature Communications.

Asteroid impacts are catastrophic events that create huge craters and sometimes melt parts of Earth's berock. "Nevertheless, craters are often difficult to detect on Earth, because erosion, weathering and plate tectonics cause them to disappear over millions of years," Langenhorst explains. Therefore, minerals that undergo characteristic changes due to the force of the impact often serve as evidence of an impact. For example, quartz sand (which chemically is silicon dioxide, SiO₂) is gradually transformed into glass by such an impact, with the quartz grains then being crisscrossed by microscopic lamellae. This structure can only be explored in detail under an electron microscope. It can be seen in material from the relatively recent and prominent Barringer crater in Arizona, USA, for example.

"For more than 60 years, these lamellar structures have served as an indicator of an asteroid impact, but no one knew until now how this structure was formed in the first place," Liermann says. "We have now solved this decades-old mystery."

To do so, the researchers had spent years modifying and advancing techniques that allow materials to be studied under high pressure in the lab. In these experiments, samples are usually compressed between two small diamond anvils in a so-called diamond anvil cell (DAC). It allows extreme pressures - as prevalent in Earth's interior or in an asteroid impact - to be generated in a controlled manner.

We received 27 reports about a fireball seen over AZ, CA and NV on Wednesday, February 22nd 2023 around 13:37 UT.

For this event, we received one video.