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Breaking and entering: How parasites prepare host cells for invasion
科学与环境

Breaking and entering: How parasites prepare host cells for invasion

Before the parasite Toxoplasma gondii can invade a cell, it has to know it has reached the right place. New research from the Whitehead Institute reveals that the parasite doesn't simply recognize a ready-made doorway into the cell. Instead, it helps create the conditions for its

Phys.org - latest science and technology news stories ·

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科学与环境

Earth is tearing apart beneath the Pacific Northwest

Scientists have captured a subduction zone off Vancouver Island in the process of tearing itself apart, revealing that these massive tectonic systems may die piece by piece rather than all at once. The discovery could help explain ancient plate fragments, volcanic activity, and h

All Top News -- ScienceDaily ·

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科学与环境

These massive stars could explain Webb’s strangest galaxies

Hubble observations of massive stars in metal-poor dwarf galaxies are revealing clues to why the early universe looks so unusual. Researchers found that stellar winds weaken sharply at extremely low metallicities, potentially allowing massive stars to retain more material and evo

All Top News -- ScienceDaily ·

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科学与环境

First stellar stream beyond the Milky Way could reveal dark matter

Astronomers have discovered the first globular cluster stellar stream beyond the Milky Way, opening a new way to study dark matter in distant galaxies. These faint trails of stars trace a galaxy’s gravitational structure and could eventually help scientists map invisible matter a

All Top News -- ScienceDaily ·

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科学与环境

The Solar System chose fire over ice from the very beginning

Ancient iron meteorites reveal that some of the Solar System’s first solid bodies were built mostly from tiny heat-forged rock beads called chondrules, while water-rich dust was largely excluded. The finding pushes this selective planet-building process back to within the Solar S

All Top News -- ScienceDaily ·

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科学与环境

Scientists discover first new penguin species in more than 100 years

Genetic evidence has revealed a previously unknown gentoo penguin species on the remote Kerguelen Islands and shown that gentoos actually consist of four distinct species. The discovery also highlights a growing threat, as warming oceans could leave several island populations wit

All Top News -- ScienceDaily ·

Banished to alien lands: Trump’s secret deportation deals
国际新闻

Banished to alien lands: Trump’s secret deportation deals

After a plane journey in shackles, an Iranian woman found herself in the middle of Africa in a country she did not know existed. She is one of thousands deported from the US on the back of shadowy deals made with dozens of countries. An in-depth investigation reveals the ‘show of

World news | The Guardian ·