This Day in Science History

The Early Flash of an Exploding Star, Caught by Kepler. Credit: NASA Ames, STScI/G. Bacon

This Day In Science History: The Discovery of a Supernova

06.11.2016

Space & Physics, Astrophysics, Planetary Science

On 6 November 1572, a supernova in the Cassiopeia constellation was first observed by German astronomer Wolfgang Schuler

Tobacco mosaic virus

This Day in Science History: The discovery of viruses – “the filterable agents”(12/2/1892)

12.02.2015

Viruses & Microorganisms, Immunology, Disease, Drugs & Diagnostics, Plants and Agriculture, Organic Chemistry, Structural Biology

On 12/2/1892, the first evidence for the existence of viruses was presented: Dimitri Ivanovsky, a young...

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Dumpster Diving in Cancer Tissue Uncovers an Immune Evasion Mechanism

A stem cell–derived human embryo model at a developmental stage equivalent to that of a human embryo at day 12 has all the compartments typical of this stage. The top sphere contains the part that will become the embryo itself, capped by the amnion; the bottom sphere is the yolk sac; the interface between them is a critical structural feature of human embryonic development. The two spheres are encapsulated by a cellular layer that will become the placenta

Human Embryo Models Grown from Stem Cells

Peripheral sensory neurons in a laboratory dish

Unlocking a Secret Nerve Cell Regenerator

Surviving on an Empty Battery

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Human Embryo Models Grown from Stem Cells

Surviving on an Empty Battery

A “Jupiter” Hotter than the Sun

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One Protein, Two Programs

A cell’s decision to commit suicide involves an exchange of information between two suicide mechanisms

Checking the Dosage

Prof. Yoram Groner is a pioneer in Down syndrome research

The Limits of Computing

Computers can solve complex problems but they are far from omnipotent. Prof. Ran Raz of the Weizmann Institute's Computer Science and Applied Mathematics Department is trying to portray the limits...