Nature & Science

Most massive neutron star near black hole tipping point – Astronomy Now

Pulses from a rapidly spinning neutron star are delayed slightly as they head toward Earth, passing through the distorted space around a companion white dwarf. That delay allowed researchers to calculate the mass of the pulsar. Image: BSaxton, NRAO/AUI/NSFAstronomers have found the most massive neutron star yet discovered, a rapidly rotating pulsar orbiting in lockstep…

Missing Link Between Simple Cells and Complex Life-Forms Possibly Found
Nature & Science

Missing Link Between Simple Cells and Complex Life-Forms Possibly Found

(Image: © Urfin/Shutterstock) Scientists may have unearthed a missing link between simple and complex cells, which make up all animals, plants and fungi. Scientists consider single-celled organisms called Archaea to lie between primitive bacteria, that lack a nucleus, and more complex cells, or eukaryotes, on the evolutionary timeline. Like their bacterial cousins, Archaea lack a nucleus,…

Trump Defends Plan to Kill California’s Auto-Emissions Authority
Environmental News

Trump Defends Plan to Kill California’s Auto-Emissions Authority

ImageEmissions testing in El Monte, Calif.CreditCreditPatrick T. Fallon/BloombergSept. 18, 2019Updated 6:15 p.m. ETWASHINGTON — President Trump on Wednesday posted on Twitter an aggressive defense of his unprecedented move to abolish California’s legal authority to set its own standards on climate-warming automobile emissions. Mr. Trump was in Los Angeles for a fund-raiser when he boasted about…