Hydrogen fuel booster

In one of his first actions in office, President Joe Biden issued an executive order on a broad range of environmental protections that included stopping construction of the Keystone XL pipeline. This is the second time a president has pumped the brakes on the embattled pipeline. Barack Obama denied a permit for the project in 2015. Then in 2017, Donald Trump reversed that decision and issued a permit. … [Read more...] about Joe Biden cancels Keystone XL permit

I might need more time with a Sorento to identify problem areas; increased security in the District of Columbia over the past week limited driving opportunities during our 48 hours with the SUV. The only downside that comes to mind immediately is a lack of driver engagement and more body roll than I like during cornering. But this is an efficient six-seater and not a sports car, so I'm not sure it's much of a problem. … [Read more...] about Three rows, 37mpg, and under $34,000? The 2021 Kia Sorento Hybrid

Stars begin their lives when hydrogen fusion ignites in their dense, hot cores. Once that process starts, it's game on. The gravitational pull of all the mass of the star tries to squeeze it down into a tiny point, but the energy released by fusion pushes outward, creating a delicate balance that can persist for millions or even trillions of years. … [Read more...] about How do stars die?

To uncover more about Earth’s supercontinent cycle, Ross Mitchell, a geologist at the Chinese Academy of Sciences, and his colleagues focused on “megacontinents,” which are smaller than a full supercontinent. One such megacontinent is Gondwana, which formed about 520 million years ago and led to the assembly of Pangaea 200 million years later. … [Read more...] about What might Earth’s next supercontinent look like? New study provides clues

Focus on COVID, Climate ChangeGates, who funds medical research and vaccine programs through the Bill & Melinda Gates Foundation, stepped down from the Microsoft board earlier this year to "dedicate more time to his philanthropic priorities including global health, development, education and his increasing engagement in tackling climate change," according to a statement from March. Since then, he has made several media appearances discussing the pandemic and warning about climate change.  His new book "How to Avoid a Climate Disaster" will be published in February. … [Read more...] about Bill Gates says he’s ready to work with President Biden on COVID, climate