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The Delta Variant Could Soon Become the Dominant COVID-19 Strain. Here’s What You Need to Know

The COVID-19 pandemic is increasingly becoming an arms race among the emerging variants of the virus, and at the moment, there’s no question which one is winning: the Delta variant—formally known as B.1.617.2—one of four strains to have emerged originally ...

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Meet Satin Berrypecker, New Bird Species from New Guinea

Ornithologists have discovered a new species of berrypecker (genus Melanocharis) in cloud forest in the Kumawa Mountains of western New Guinea (West Papua province, Indonesia), one of the last biologically underexplored regions of the world. The discovery is outlined in ...

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Israeli Archaeologists Find 1,000-Year-Old Intact Chicken Egg

A team of archaeologists from the Israel Antiquities Authority (IAA) has found an unbroken chicken egg in an Islamic-period cesspit at the archaeological site of Yavne on Israel’s southern Mediterranean coast. Poultry farming was introduced to Israel approximately 2,300 years ...

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‘Changing-Look’ Blazar Spotted 6.3 Billion Light-Years Away

Astronomers have performed photometric and spectroscopic observations of B2 1420+32, a blazar with a collection of ‘changing-look’ features. Blazars are powerful active galactic nuclei (AGN) with relativistic jets pointing toward the observer. Their jets span distances on the million light-year ...

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New Ancient Crocodile Species Identified in Australia

A new genus and species of large-sized tomistomine crocodylian has been identified from a large, incomplete skull found more than a century ago in Queensland, Australia. Gunggamarandu maunala lived somewhere between 2 and 5 million years ago (Pliocene or Pleistocene ...

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Hubble Space Telescope Looks at NGC 3254

Astronomers using the NASA/ESA Hubble Space Telescope have taken a detailed image of a spectacular part of the spiral galaxy NGC 3254. NGC 3254 lies approximately 118 million light-years away in the constellation of Leo Minor. Otherwise known as IRAS ...

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Two Giant Exoplanets Found around Sun-Like Star

Professional astronomers and citizen scientists from the NASA-funded Planet Hunters TESS project have discovered a two-planet system around the bright Sun-like star HD 152843. HD 152843 is a G-dwarf star located about 352 light-years away in the northern constellation of ...

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Giant ‘Blinking’ Star Spotted in Milky Way’s Central Region

A giant star called VVV-WIT-08 exhibited a smooth, eclipse-like drop in brightness to a depth of 97% in 2012; minimum brightness occurred in April 2012 and the total event duration was a few hundred days, according to an analysis of ...

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Cretaceous Dinosaurs Lived in Warm and Variable Greenhouse Climate, Study Suggests

Paleoclimatologists have precisely reconstructed monthly sea surface temperatures at around 50 °N latitude from fossil shells of bivalve mollusks that lived during the Campanian (Late Cretaceous epoch) greenhouse period, about 78 million years ago. “We used to think that when ...

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CHIME Telescope Discovers 535 New Fast Radio Bursts

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) has detected 535 new fast radio bursts — including 18 repeating sources — during its first year of operation. Fast radio bursts (FRBs) are one of the great unsolved mysteries in astronomy. Though ...

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