The Watchers - News Update (5 new articles)

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• 2018 Botswana Fireball (asteroid 2018 LA) likely a fragment of asteroid Vesta
• Researchers propose new formation mechanism for solar coronal rain
• Aerial images reveal invisible fault in Datong City, China
• G2 - Moderate geomagnetic storm watch in effect for April 25
• Deep M6.4 earthquake hits Fiji region

2018 Botswana Fireball (asteroid 2018 LA) likely a fragment of asteroid Vesta Posted: 24 Apr 2021 02:14 PM PDT A large fireball that exploded over Botswana in 2018 (asteroid 2018 LA) likely originated from Vesta, the second-largest object in the asteroid belt, according to an international team of scientists who analyzed fragments recovered after the impact. Vesta is the...... Read more »

Researchers propose new formation mechanism for solar coronal rain Posted: 24 Apr 2021 12:54 PM PDT Coronal rain is a phenomenon on the Sun that plays a key role in the mass cycle between the hot corona and cool chromosphere. In a new study, a team of researchers has proposed a new formation mechanism for coronal rain along open magnetic structures, showing that...... Read more »

Aerial images reveal invisible fault in Datong City, China Posted: 24 Apr 2021 11:50 AM PDT Aerial photos of Yudong District, Datong City in Shanxi Province, China, have aided scientists in their search for a hidden fault underneath the city, the team reported at the Seismological Society of America's 2021 Annual Meeting. Photos taken from the 1960s...... Read more »

G2 - Moderate geomagnetic storm watch in effect for April 25 Posted: 23 Apr 2021 10:59 PM PDT A partial halo Coronal Mass Ejection (CME) produced by the C3.8 solar flare from Region 2816 at 04:35 UTC on April 22 is heading toward Earth and is expected to arrive on April 25. As a result, a G2 - Moderate geomagnetic storming is expected. This CME has been...... Read more »

Deep M6.4 earthquake hits Fiji region Posted: 23 Apr 2021 10:11 PM PDT A deep earthquake registered by the USGS as M6.4 hit the Fiji region at 00:23 UTC on April 24, 2021. The agency is reporting a depth of 290 km (180 miles). EMSC is reporting M6.4 at a depth of 273 km (169 miles). The epicenter was located about 220 km (137 miles)...... Read more »

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