Comparative molecular dynamics study of the receptor-binding domains in SARS-CoV-2 and SARS-CoV and the effects of mutations on the binding affinity

"ABSTRACT "Here, we report on a computational comparison of the receptor-binding domains (RBDs) on the spike proteins of severe respiratory syndrome coronavirus‐2 (SARS-CoV-2) and SARS-CoV in free forms and as complexes with angiotensin-converting enzyme 2 (ACE2) as their receptor in humans. The impact of 42 mutations discovered so far on the structure and thermodynamics of …

8 Flora – parent of the L chondrite family of meteorites

Flora's spectra indicates that its surface composition is a mixture of silicate, pyroxene, olivine with nickel-iron metal. Flora is considered a good candidate for being the parent body of the L-chondrite meteorites. Sci-fi fans may remember 8 Flora from The Green Slime (1968), where an orbital perturbation propels the asteroid Flora into a collision course with Earth. A …

1 Ceres – Readying to Image the “First Asteroid”

https://www.nasa.gov/sites/default/files/thumbnails/image/pia18920.gif The day that the Dawn spacecraft first entered 1 Ceres orbit, 6MAR2015 Credit: NASA Soon, I'll make my first attempt to image the first asteroid discovered by humans. In 1778, Johann Elert Bode first suggested an undiscovered planet could exist between the orbits of Mars and Jupiter. Bode observed that there was a regular …

Harbour Air and magniX announce successful flight of FIRST electric commercial airplane 10DEC2019

Inaugural flight is the first step in becoming the world’s first all-electric commercial fleet VANCOUVER, British Columbia – December 10, 2019 – Harbour Air, North America’s largest seaplane airline and magniX, the company powering the electric aviation revolution, today announced the successful flight of the world’s first all-electric commercial aircraft. The successful flight of the ePlane, a six-passenger DHC-2 de …

“This Boeing-Backed Company Is Planning to Make Electric Airplanes”

https://www.popularmechanics.com/flight/news/a28540/boeing-backed-electric-plane-fly-2020s/ This story appears in the July 2018 issue.  As experimental prototypes, electric airplanes have been around for decades. But the nagging question remains: Will they ever be commercially viable? Zunum Aero thinks so. It has 20 full-time employees and 20 contract workers spread across facilities in Kirkland (software operations) as well as Chicago and Indianapolis (electric manufacturing …