What we haven’t learned, because it hasn’t been directly measured in experiments, is whether antimatter falls down at the same rate as ordinary matter or if it might behave differently. Two new experiments at CERN, ALPHA-g and GBAR, have now started their journey towards answering this question
NASA’s Hubble Space Telescope returned to normal operations late Friday, Oct. 26, and completed its first science observations on Saturday, Oct. 27 at 2:10 AM EDT.
… Originally required to last 15 years, Hubble has now been at the forefront of scientific discovery for more than 28 years.
Talking Hawking – his new book and ‘last’ scientific paper
Patrick Honner on imaginary and complex numbers, Quanta Magazine:
… And they are the first step into a world of strange number systems, some of which are being proposed as models of the mysterious relationships underlying our physical world.