The first observations of Antarctic icebergs by Davis in 1688 and Halley in 1700
Sign Up to like & getrecommendations! Published in 2025 at "Polar Record"
DOI: 10.1017/s0032247425000026
Abstract: Abstract The earliest recorded observations of Antarctic icebergs occurred in 1688 and 1700 in the Gregorian New Style (NS) Calendar. The first sighting took place after Christmas 1687 in the Julian Old Style (OS) Calendar,… read more here.
Keywords: icebergs davis; halley; davis; antarctic icebergs ... See more keywords
First observations of magnetic holes deep within the coma of a comet
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201833300
Abstract: The Rosetta spacecraft of the European Space Agency made ground-breaking observations of comet 67P/Churyumov-Gerasimenko and of its cometary environment. We search for magnetic holes in that enviro ... read more here.
Keywords: first observations; holes deep; magnetic holes; observations magnetic ... See more keywords
First observations of solar halo gamma rays over a full solar cycle
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review D"
DOI: 10.1103/qm68-ng62
Abstract: We analyze 15 years of -LAT data and produce a detailed model of the Sun’s inverse-Compton scattering emission (solar halo), which is powered by interactions between ambient cosmic-ray electrons and positrons with sunlight. By developing a… read more here.
Keywords: cosmic ray; halo; solar halo; observations solar ... See more keywords
First observations of a social wasp preying on termite workers
Sign Up to like & getrecommendations! Published in 2017 at "Sociobiology"
DOI: 10.13102/sociobiology.v64i2.1559
Abstract: The social wasp Polybia quadricincta is observed preying opportunistically on workers of the termite Nasutitermes corniger in Trinidad, West Indies . Several Polybia spp. and other social wasps are known to prey on winged reproductive,… read more here.
Keywords: social wasp; first observations; wasp preying; preying termite ... See more keywords
First observations of filamentous cyanobacterial mats on whip black corals (Antipatharia: Stichopathes spp.) off Rapa Nui (Easter Island), Chile
Sign Up to like & getrecommendations! Published in 2025 at "Bulletin of Marine Science"
DOI: 10.5343/bms.2024.0071
Abstract: This report documents the first occurrence of filamentous mats affecting whip-corals in mesophotic ecosystems on Rapa Nui. Observations in 2018 revealed mats covering coral branches at 113-131 m. Recent campaigns in 2022 and 2024 confirmed… read more here.
Keywords: mats whip; filamentous cyanobacterial; rapa nui; cyanobacterial mats ... See more keywords