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#comets

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:rss: Hacker News

Oxygen discovered in most distant known galaxy
eso.org/public/news/eso2507/
#ycombinator #ESO #eso_org #Astronomy #Astrophysics #Astronomie #Suedsternwarte #telescopes #detectors #comets #planets #stars #galaxies #nebulae #universe #NTT #VLT #VLTI #ALMA #ELT #La_Silla #Paranal #Garching #Chile

www.eso.orgOxygen discovered in most distant known galaxyTwo different teams of astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. The discovery, reported in two separate studies, was made possible thanks to the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner. This record-breaking detection is making astronomers rethink how quickly galaxies formed in the early Universe.
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Ele Willoughby, PhD

were previously unknown! She also found 8 or 9 #comets, as well as making & sharing observations of comets discovered by others. The portrait is based on a miniature of Caroline, as well as her notes & diagrams from 1 August 1786, when she discovered her first comet, now known as Comet C/1786 P1 (Herschel).⁠
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In order to calculate orbits of newly discovered comets, it was important to let other astronomers know ASAP. She discovered her 8th comet while her brother was away.🧵4/5

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Miro Collas

Rare comet may be visible for only time in 160,000 years
bbc.com/news/articles/cvge4e7d

"While the exact locations for possible visibility are unknown, experts believe the comet, which could shine as bright as Venus, may be best observed from the southern hemisphere."

www.bbc.comRare comet may be visible for only time in 160,000 yearsComet C/2024 G3 could shine as bright as Venus due to its close proximity to the Sun.
#Astronomy#Cosmology#Comets
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The Conversation U.S.

Scientists have identified two types of "dark comets" in our solar system - objects that accelerate like comets but lack visible tails. A planetary scientist explains how these elusive bodies could reveal clues about the origins of Earth's oceans:
buff.ly/4gtrxVM
#astronomy #comets #asteroids

The Conversation2 populations of dark comets in the solar system could tell researchers where the Earth got its oceansComets without tails, called dark comets, are a newly discovered space object. Now, astronomers know they come in 2 classes.
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NASA

5 Surprising NASA Heliophysics Discoveries Not Related to the Sun science.nasa.gov/science-resea #NASA #Comets #FermiGammaRaySpaceTelescope #GammaRayBursts #GoddardSpaceFlightCenter #Heliophysics #HeliophysicsDivision #ICONIonosphericConnectionExplorer #ParkerSolarProbePSP #SOHOSolarAndHeliosphericObservatory #Stars #STEREOSolarTErrestrialRElationsObservatory

science.nasa.gov5 Surprising NASA Heliophysics Discoveries Not Related to the Sun - NASA ScienceWith NASA’s fleet of heliophysics spacecraft, scientists monitor our Sun and investigate its influences throughout the solar system. However, the fleet’s constant watch and often-unique perspectives sometimes create opportunities to make discoveries that no one expected.
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