Concrete Made From Old Tires Proves Tougher and More Sustainable

One of the world’s most widely used materials, concrete is responsible for 8% of global carbon emissions. To find more sustainable alternatives, researchers often look to other resources and, in this case, have turned to old rubber tires. A new study from scientists at the University of South Australia and Melbourne’s RMIT University used crumb rubber concrete—concrete made by grinding used tires into crumb-like pieces—as …

NASA’s Hubble Space Telescope Observes The Farthest Star Ever Seen

Documented in a new study led by Johns Hopkins University PhD candidate Brain Welch and published in the scientific journal Nature, NASA’s Hubble Space Telescope has captured an image of a star estimated to be 28 billion light-years away—making it the most distant one ever seen. Named Earendel, this 12.9-billion-year-old cosmic object happens to be millions of times brighter than our solar system’s Sun, and …

Gender Marker “X” Available on US Passports

On 11 April, US citizens will be able to select the gender marker X on passports, the State Department announced today. Additionally, the Department of Homeland Security has announced that the X designation will be included in the TSA Pre-Check program and TSA checkpoints will have gender-neutral scanners at airports. The move comes several months after the country’s first-ever passport with the X gender designation …