#science

esa@social.gibberfish.org

The solar cycle, a heartbeat of stellar energy

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SOHO: 25 years of solar imaging

The Sun follows a roughly 11-year rhythm of waking up and becoming very active before calming down again, a stellar beat known as the solar cycle. This affects Earth because it shapes space weather, determining how much radiation, magnetic field and particles the Sun flings out into space and towards our planet.

#space #science #esa #europeanspaceagency
posted by pod_feeder_v2

esa@social.gibberfish.org

Proba-3 will constantly measure Sun’s energy output

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Proba-3's pair of satellites

Proba-3 is such an ambitious mission that it needs more than one single spacecraft to succeed. In order for Proba-3’s Coronagraph spacecraft observe the Sun’s faint surrounding atmosphere, the disk-bearing Occulter spacecraft must block out the fiery solar disk. This means Proba-3’s Occulter ends up facing the Sun continuously, making it a valuable platform for science in its own right.

#news #space #science #esa #europeanspaceagency
posted by pod_feeder_v2

anonymiss@despora.de
anonymiss@despora.de

The untold story of the world’s biggest #nuclear #bomb

Source: https://thebulletin.org/2021/11/the-untold-story-of-the-worlds-biggest-nuclear-bomb/

Designed to have a maximum explosive yield of 100 million tons (or 100 megatons) of #TNT equivalent, the 60,000-pound monster bomb was detonated at only half its strength. Still, at 50 megatons, it was more than 3,300 times as powerful as the atomic bomb that killed at least 70,000 people in #Hiroshima, and more than 40 times as powerful as the largest nuclear bomb in the US arsenal today. Its single test represents about one tenth of the total yield of all nuclear weapons ever tested by all nations.

#history #coldwar #usa #Military #explosion #weapon #sundail #project #science #apocalypse #endoftheworld #doomsday

esa@social.gibberfish.org

Devastating floods in Spain witnessed by satellites

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Torrential rainfall causing deadly flash floods has hit southern and eastern Spain in regions including the Costa del Sol, where the city of Malaga is located, and Valencia in the east. As these areas struggle to cope with the aftermath, satellite technology has played a crucial role in assessing the damages of the affected areas.

#earth #science #space #esa #europeanspaceagency
posted by pod_feeder_v2