Science News Roundup: Scientists conclude New Mexico fossil is new Tyrannosaurus species; DNA from ancient Europeans reveals surprising multiple sclerosis origins and more

These ancient genomes were then compared with modern DNA from the UK Biobank, comprising about 410,000 self-identified "white-British" people, and more than 24,000 others born outside the United Kingdom, to discern changes over time. Scientists conclude New Mexico fossil is new Tyrannosaurus species Scientists reassessing a partial skull first unearthed in 1983 in southeastern New Mexico have concluded that the fossil represents a new species of Tyrannosaurus - the fearsome apex predator from western North America at the twilight of the dinosaur age - that predated the fabulously famous T.

Following is a summary of current science news briefs.

Analysis-Vulcan rocket's debut brings long-awaited challenge to SpaceX dominance

A Boeing-Lockheed joint venture's launch of a new Vulcan rocket this week inaugurated a formidable rival to Elon Musk's SpaceX, a milestone long sought by the U.S. government as it seeks to build a list of launch suppliers for its satellites. Boeing and Lockheed Martin's United Launch Alliance sent Vulcan into space for the first time on Monday, a first step toward reclaiming market share from SpaceX, whose reusable Falcon 9 rocket for years has been the main option for countries to get their satellites into space. The payload, a privately funded moon lander, will not finish its mission because of tech problems, but the Vulcan launch in Florida was a success.

DNA from ancient Europeans reveals surprising multiple sclerosis origins

DNA obtained from the bones and teeth of ancient Europeans who lived up to 34,000 years ago is providing insight into the origin of the often-disabling neurological disease multiple sclerosis, finding that genetic variants that now increase its risk once served to protect people from animal-borne diseases. The findings stemmed from research involving ancient DNA sequenced from 1,664 people from various sites across Western Europe and Asia. These ancient genomes were then compared with modern DNA from the UK Biobank, comprising about 410,000 self-identified "white-British" people, and more than 24,000 others born outside the United Kingdom, to discern changes over time.

Scientists conclude New Mexico fossil is new Tyrannosaurus species

Scientists reassessing a partial skull first unearthed in 1983 in southeastern New Mexico have concluded that the fossil represents a new species of Tyrannosaurus - the fearsome apex predator from western North America at the twilight of the dinosaur age - that predated the fabulously famous T. rex. Subtle differences from Tyrannosaurus rex observed in the skull merit recognizing the dinosaur as a separate species called Tyrannosaurus mcraeensis that lived several million years before T. rex and was comparable in size, the researchers said on Thursday. The skull previously was identified as a T. rex.