Peruvian astronomers Jorge Melendez of The Australian National University and Ivan Ramirez of The University of Texas at Austin have discovered the best “solar twin” to date, using the 2.7-meter Harlan J. Smith Telescope at McDonald Observatory. Their findings suggest that the Sun’s chemical composition is not unique, as some previously thought.
- How Ethical Are You? Put Your Decision-Making Skills to the Test Sept. 22, 2014
- Everyday Ethics Sept. 22, 2014
- Spanking, Whooping, Beating – It’s All Hitting Sept. 22, 2014