New clues to Ceres' bright spots and origins

Ceres reveals some of its well-kept secrets in two new studies in the journal Nature, thanks to data from NASA's Dawn spacecraft. They include highly anticipated insights about mysterious bright features found all over the ...

Opportunity rover finds mineral vein deposited by water

(PhysOrg.com) -- NASA's Mars Exploration Rover Opportunity has found bright veins of a mineral, apparently gypsum, deposited by water. Analysis of the vein will help improve understanding of the history of wet environments ...

COVID-19 virus uses heparan sulfate to get inside cells

A molecule known as ACE2 sits like a doorknob on the outer surfaces of the cells that line the lungs. Since January 2020, researchers have known that SARS-CoV-2, the novel coronavirus that causes COVID-19, primarily uses ...

The giant geode of Pulpí

The geode of Pulpí is an 11-meter hollow ovoid with crystal-paneled walls. It is like those familiar couplets of stone interiors covered with bright crystallites, but so large that several people can fit inside. The crystals, ...

Astronomers open window into Europa's ocean

(Phys.org) —With data collected from the mighty W. M. Keck Observatory, California Institute of Technology (Caltech) astronomer Mike Brown—known as the Pluto killer for discovering a Kuiper-belt object that led to the ...

These molecules could trap viruses inside a cell

Viruses are often used as vehicles for delivery in gene therapy because they're engineered not to damage the cell once they get there, but neglecting to consider how the virus will exit the cell could have consequences.

Mars scientist explains why NASA chose Gale Crater for new rover

NASA chose Gale Crater as a landing site for its Mars Science Laboratory rover because the giant crater probably had conditions that may have once hosted life. The bottom layers near the crater floor "have minerals in them ...

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