ebola virus 1

Ebola vaccine inches toward human clinical trials

[caption id="attachment_14507" align="alignnone" width="630"] Ebola virus swarms the surface of a host cell in this electron micrograph. Like most viruses, Ebola requires the help of a host cell to survive and replicate. PHOTO: TAKESHI NODA,…

MIT Enzyme Structure 0

Scientists deliver high-resolution glimpse of enzyme structure

New finding suggests differences in how humans and bacteria control production of DNA’s building blocks. [caption id="attachment_14503" align="alignnone" width="733"] Using a state-of-the-art type of electron microscopy, an MIT-led team has discovered the structure of an…

Chelyabinsk Asteroid node full image 2

Chelyabinsk asteroid

[caption id="attachment_14494" align="alignnone" width="700"] Credit: M. Ahmetvaleev[/caption] Vapour cloud trail left by the Chelyabinsk asteroid as seen by M. Ahmetvaleev on 15 February 2013. It shows the path where an approximately 20 m-diameter, 13 000-tonne…