Artist impression of W2246-0526, the most luminous known galaxy, and three companion galaxies. Credit: NRAO/AUI/NSF, S. Dagnello

ALMA data show the most luminous galaxy in the universe has been caught in the act of stripping away nearly half the mass from at least three of its smaller neighbors. The light from this galaxy, known as W2246-0526, took 12.4 billion years to reach us, so we are seeing it as it was when our universe was only about a tenth of its present age.

New observations with the Atacama Large Millimeter/ submillimeter Array (ALMA) reveal distinct streamers of material being pulled from three smaller galaxies and flowing into the more massive galaxy, which was discovered in 2015 by NASA’s space-based Wide-field Infrared Survey Explorer (WISE)...

Artist depiction of the MMS spacecraft that provided the first view of magnetic reconnection.
Credit: NASA/GSFC

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving “magnetic reconnection” – the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion – in the Earth’s magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can have – sparking auroras and possibly wreaking havoc on power grids in the case of extremely large events – but they haven’t completely understood the details...

Blood sample.
Credit: © praisaeng / Fotolia

Cancer scientists led by principal investigator Dr. Daniel De Carvalho at Princess Margaret Cancer Centre have combined “liquid biopsy,” epigenetic alterations and machine learning to develop a blood test to detect and classify cancer at its earliest stages. The findings describe not only a way to detect cancer, but hold promise of being able to find it earlier when it is more easily treated and long before symptoms ever appear, says Dr. De Carvalho, Senior Scientist at the cancer centre, University Health Network.

“We are very excited at this stage,” says Dr. De Carvalho. “A major problem in cancer is how to detect it early...

The researcher’s model of a yeast cell (magenta) with semiconductor nanoparticles (purple) attached to its surface (left) corresponds with their SEM analysis of the completed biohybrid system (right). The semiconductors capture electrons from light and hand them over to the cell where they drive the shikimic acid metabolic pathway.
Credit: Wyss Institute at Harvard University

Scientists presents a highly adaptable solution to creating yeast biohybrids with enhanced metabolism driven by light energy. Genetically engineered microbes such as bacteria and yeasts have long been used as living factories to produce drugs and fine chemicals...